Home / 1,145,032,913.80-1,717,549,370.70-408,933,984.70

Finding the Fourth Proportional to 1,145,032,913.80, 1,717,549,370.70 and 408,933,984.70

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Solution

The fourth proportional to 1,145,032,913.80, 1,717,549,370.70 and 408,933,984.70 is: 613,400,977.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,032,913.80 : 1,717,549,370.70 = 408,933,984.70 : x
  2. Step 2: Convert to fraction form
    1,145,032,913.80/1,717,549,370.70 = 408,933,984.70/x
  3. Step 3: Cross multiply
    1,145,032,913.80x = 1,717,549,370.70 × 408,933,984.70
  4. Step 4: Simplify right side
    1,145,032,913.80x = 702,364,308,079,328,384
  5. Step 5: Solve for x
    x = 702,364,308,079,328,384/1,145,032,913.80
  6. Step 6: Final answer
    x = 613,400,977.05

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Half scale
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Double scale
Find fourth proportional to 1,145,032,914.80, 1,717,549,372.20 and 408,933,985.70
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.