Home / 869,850,397.80-1,200,433,077.45-512,633,250.90

Finding the Fourth Proportional to 869,850,397.80, 1,200,433,077.45 and 512,633,250.90

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Solution

The fourth proportional to 869,850,397.80, 1,200,433,077.45 and 512,633,250.90 is: 707,457,181.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,850,397.80 : 1,200,433,077.45 = 512,633,250.90 : x
  2. Step 2: Convert to fraction form
    869,850,397.80/1,200,433,077.45 = 512,633,250.90/x
  3. Step 3: Cross multiply
    869,850,397.80x = 1,200,433,077.45 × 512,633,250.90
  4. Step 4: Simplify right side
    869,850,397.80x = 615,381,910,981,084,928
  5. Step 5: Solve for x
    x = 615,381,910,981,084,928/869,850,397.80
  6. Step 6: Final answer
    x = 707,457,181.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.