Home / 418,180,684.95-577,210,996.02-278,951,114.58

Finding the Fourth Proportional to 418,180,684.95, 577,210,996.02 and 278,951,114.58

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Solution

The fourth proportional to 418,180,684.95, 577,210,996.02 and 278,951,114.58 is: 385,033,686.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,180,684.95 : 577,210,996.02 = 278,951,114.58 : x
  2. Step 2: Convert to fraction form
    418,180,684.95/577,210,996.02 = 278,951,114.58/x
  3. Step 3: Cross multiply
    418,180,684.95x = 577,210,996.02 × 278,951,114.58
  4. Step 4: Simplify right side
    418,180,684.95x = 161,013,650,687,610,944
  5. Step 5: Solve for x
    x = 161,013,650,687,610,944/418,180,684.95
  6. Step 6: Final answer
    x = 385,033,686.35

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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.