Home / 103,690,387,939.30-155,535,581,908.95-99,627,060,912.10

Finding the Fourth Proportional to 103,690,387,939.30, 155,535,581,908.95 and 99,627,060,912.10

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Solution

The fourth proportional to 103,690,387,939.30, 155,535,581,908.95 and 99,627,060,912.10 is: 149,440,591,368.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,690,387,939.30 : 155,535,581,908.95 = 99,627,060,912.10 : x
  2. Step 2: Convert to fraction form
    103,690,387,939.30/155,535,581,908.95 = 99,627,060,912.10/x
  3. Step 3: Cross multiply
    103,690,387,939.30x = 155,535,581,908.95 × 99,627,060,912.10
  4. Step 4: Simplify right side
    103,690,387,939.30x = 15,495,552,892,841,882,550,272
  5. Step 5: Solve for x
    x = 15,495,552,892,841,882,550,272/103,690,387,939.30
  6. Step 6: Final answer
    x = 149,440,591,368.15

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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.