Home / 766,215,432.20-1,057,377,256.21-413,791,388.86

Finding the Fourth Proportional to 766,215,432.20, 1,057,377,256.21 and 413,791,388.86

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Solution

The fourth proportional to 766,215,432.20, 1,057,377,256.21 and 413,791,388.86 is: 571,032,094.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,215,432.20 : 1,057,377,256.21 = 413,791,388.86 : x
  2. Step 2: Convert to fraction form
    766,215,432.20/1,057,377,256.21 = 413,791,388.86/x
  3. Step 3: Cross multiply
    766,215,432.20x = 1,057,377,256.21 × 413,791,388.86
  4. Step 4: Simplify right side
    766,215,432.20x = 437,533,603,396,112,000
  5. Step 5: Solve for x
    x = 437,533,603,396,112,000/766,215,432.20
  6. Step 6: Final answer
    x = 571,032,094.90

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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.