Home / 279,777,068.67-386,092,726.71-154,326,434.76

Finding the Fourth Proportional to 279,777,068.67, 386,092,726.71 and 154,326,434.76

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Solution

The fourth proportional to 279,777,068.67, 386,092,726.71 and 154,326,434.76 is: 212,970,685.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,777,068.67 : 386,092,726.71 = 154,326,434.76 : x
  2. Step 2: Convert to fraction form
    279,777,068.67/386,092,726.71 = 154,326,434.76/x
  3. Step 3: Cross multiply
    279,777,068.67x = 386,092,726.71 × 154,326,434.76
  4. Step 4: Simplify right side
    279,777,068.67x = 59,584,313,999,921,320
  5. Step 5: Solve for x
    x = 59,584,313,999,921,320/279,777,068.67
  6. Step 6: Final answer
    x = 212,970,685.14

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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.