Home / 268,427,310.77-402,656,089.55-81,687,326.93

Finding the Fourth Proportional to 268,427,310.77, 402,656,089.55 and 81,687,326.93

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Solution

The fourth proportional to 268,427,310.77, 402,656,089.55 and 81,687,326.93 is: 122,535,592.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,427,310.77 : 402,656,089.55 = 81,687,326.93 : x
  2. Step 2: Convert to fraction form
    268,427,310.77/402,656,089.55 = 81,687,326.93/x
  3. Step 3: Cross multiply
    268,427,310.77x = 402,656,089.55 × 81,687,326.93
  4. Step 4: Simplify right side
    268,427,310.77x = 32,891,899,627,017,776
  5. Step 5: Solve for x
    x = 32,891,899,627,017,776/268,427,310.77
  6. Step 6: Final answer
    x = 122,535,592.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.