Home / 512,280,385.20-708,138,381.96-457,072,981.92

Finding the Fourth Proportional to 512,280,385.20, 708,138,381.96 and 457,072,981.92

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Solution

The fourth proportional to 512,280,385.20, 708,138,381.96 and 457,072,981.92 is: 631,823,765.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,280,385.20 : 708,138,381.96 = 457,072,981.92 : x
  2. Step 2: Convert to fraction form
    512,280,385.20/708,138,381.96 = 457,072,981.92/x
  3. Step 3: Cross multiply
    512,280,385.20x = 708,138,381.96 × 457,072,981.92
  4. Step 4: Simplify right side
    512,280,385.20x = 323,670,921,854,461,184
  5. Step 5: Solve for x
    x = 323,670,921,854,461,184/512,280,385.20
  6. Step 6: Final answer
    x = 631,823,765.28

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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.