Home / 138,008,954,330.20-207,013,431,495.30-90,898,622,867.80

Finding the Fourth Proportional to 138,008,954,330.20, 207,013,431,495.30 and 90,898,622,867.80

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Solution

The fourth proportional to 138,008,954,330.20, 207,013,431,495.30 and 90,898,622,867.80 is: 136,347,934,301.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,008,954,330.20 : 207,013,431,495.30 = 90,898,622,867.80 : x
  2. Step 2: Convert to fraction form
    138,008,954,330.20/207,013,431,495.30 = 90,898,622,867.80/x
  3. Step 3: Cross multiply
    138,008,954,330.20x = 207,013,431,495.30 × 90,898,622,867.80
  4. Step 4: Simplify right side
    138,008,954,330.20x = 18,817,235,838,060,424,331,264
  5. Step 5: Solve for x
    x = 18,817,235,838,060,424,331,264/138,008,954,330.20
  6. Step 6: Final answer
    x = 136,347,934,301.70

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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.