Home / 103,690,387,955.30-155,535,581,932.95-99,627,060,928.10

Finding the Fourth Proportional to 103,690,387,955.30, 155,535,581,932.95 and 99,627,060,928.10

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Solution

The fourth proportional to 103,690,387,955.30, 155,535,581,932.95 and 99,627,060,928.10 is: 149,440,591,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,690,387,955.30 : 155,535,581,932.95 = 99,627,060,928.10 : x
  2. Step 2: Convert to fraction form
    103,690,387,955.30/155,535,581,932.95 = 99,627,060,928.10/x
  3. Step 3: Cross multiply
    103,690,387,955.30x = 155,535,581,932.95 × 99,627,060,928.10
  4. Step 4: Simplify right side
    103,690,387,955.30x = 15,495,552,897,721,502,269,440
  5. Step 5: Solve for x
    x = 15,495,552,897,721,502,269,440/103,690,387,955.30
  6. Step 6: Final answer
    x = 149,440,591,392.15

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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.