Home / 103,690,387,930.80-155,535,581,896.20-99,627,060,903.60

Finding the Fourth Proportional to 103,690,387,930.80, 155,535,581,896.20 and 99,627,060,903.60

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Solution

The fourth proportional to 103,690,387,930.80, 155,535,581,896.20 and 99,627,060,903.60 is: 149,440,591,355.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,690,387,930.80 : 155,535,581,896.20 = 99,627,060,903.60 : x
  2. Step 2: Convert to fraction form
    103,690,387,930.80/155,535,581,896.20 = 99,627,060,903.60/x
  3. Step 3: Cross multiply
    103,690,387,930.80x = 155,535,581,896.20 × 99,627,060,903.60
  4. Step 4: Simplify right side
    103,690,387,930.80x = 15,495,552,890,249,584,574,464
  5. Step 5: Solve for x
    x = 15,495,552,890,249,584,574,464/103,690,387,930.80
  6. Step 6: Final answer
    x = 149,440,591,355.40

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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.