Home / 800,341,208.10-1,200,511,812.15-664,292,312.10

Finding the Fourth Proportional to 800,341,208.10, 1,200,511,812.15 and 664,292,312.10

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Solution

The fourth proportional to 800,341,208.10, 1,200,511,812.15 and 664,292,312.10 is: 996,438,468.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,341,208.10 : 1,200,511,812.15 = 664,292,312.10 : x
  2. Step 2: Convert to fraction form
    800,341,208.10/1,200,511,812.15 = 664,292,312.10/x
  3. Step 3: Cross multiply
    800,341,208.10x = 1,200,511,812.15 × 664,292,312.10
  4. Step 4: Simplify right side
    800,341,208.10x = 797,490,767,396,484,480
  5. Step 5: Solve for x
    x = 797,490,767,396,484,480/800,341,208.10
  6. Step 6: Final answer
    x = 996,438,468.15

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Double scale
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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.