Home / 151,530,910,447.76-209,113,960,470.76-86,428,635,351.53

Finding the Fourth Proportional to 151,530,910,447.76, 209,113,960,470.76 and 86,428,635,351.53

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Solution

The fourth proportional to 151,530,910,447.76, 209,113,960,470.76 and 86,428,635,351.53 is: 119,272,260,577.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,530,910,447.76 : 209,113,960,470.76 = 86,428,635,351.53 : x
  2. Step 2: Convert to fraction form
    151,530,910,447.76/209,113,960,470.76 = 86,428,635,351.53/x
  3. Step 3: Cross multiply
    151,530,910,447.76x = 209,113,960,470.76 × 86,428,635,351.53
  4. Step 4: Simplify right side
    151,530,910,447.76x = 18,073,434,236,440,528,551,936
  5. Step 5: Solve for x
    x = 18,073,434,236,440,528,551,936/151,530,910,447.76
  6. Step 6: Final answer
    x = 119,272,260,577.30

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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.