Home / 928,087,416.72-1,280,735,054.28-510,399,691.92

Finding the Fourth Proportional to 928,087,416.72, 1,280,735,054.28 and 510,399,691.92

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Solution

The fourth proportional to 928,087,416.72, 1,280,735,054.28 and 510,399,691.92 is: 704,337,506.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,087,416.72 : 1,280,735,054.28 = 510,399,691.92 : x
  2. Step 2: Convert to fraction form
    928,087,416.72/1,280,735,054.28 = 510,399,691.92/x
  3. Step 3: Cross multiply
    928,087,416.72x = 1,280,735,054.28 × 510,399,691.92
  4. Step 4: Simplify right side
    928,087,416.72x = 653,686,777,135,656,448
  5. Step 5: Solve for x
    x = 653,686,777,135,656,448/928,087,416.72
  6. Step 6: Final answer
    x = 704,337,506.75

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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.