Home / 1,108,972,205.20-1,663,458,307.80-291,167,174.80

Finding the Fourth Proportional to 1,108,972,205.20, 1,663,458,307.80 and 291,167,174.80

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Solution

The fourth proportional to 1,108,972,205.20, 1,663,458,307.80 and 291,167,174.80 is: 436,750,762.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,972,205.20 : 1,663,458,307.80 = 291,167,174.80 : x
  2. Step 2: Convert to fraction form
    1,108,972,205.20/1,663,458,307.80 = 291,167,174.80/x
  3. Step 3: Cross multiply
    1,108,972,205.20x = 1,663,458,307.80 × 291,167,174.80
  4. Step 4: Simplify right side
    1,108,972,205.20x = 484,344,455,879,714,816
  5. Step 5: Solve for x
    x = 484,344,455,879,714,816/1,108,972,205.20
  6. Step 6: Final answer
    x = 436,750,762.20

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Half scale
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Double scale
Find fourth proportional to 1,108,972,206.20, 1,663,458,309.30 and 291,167,175.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.