Home / 103,690,387,943.80-155,535,581,915.70-99,627,060,916.60

Finding the Fourth Proportional to 103,690,387,943.80, 155,535,581,915.70 and 99,627,060,916.60

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Solution

The fourth proportional to 103,690,387,943.80, 155,535,581,915.70 and 99,627,060,916.60 is: 149,440,591,374.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,690,387,943.80 : 155,535,581,915.70 = 99,627,060,916.60 : x
  2. Step 2: Convert to fraction form
    103,690,387,943.80/155,535,581,915.70 = 99,627,060,916.60/x
  3. Step 3: Cross multiply
    103,690,387,943.80x = 155,535,581,915.70 × 99,627,060,916.60
  4. Step 4: Simplify right side
    103,690,387,943.80x = 15,495,552,894,214,275,596,288
  5. Step 5: Solve for x
    x = 15,495,552,894,214,275,596,288/103,690,387,943.80
  6. Step 6: Final answer
    x = 149,440,591,374.90

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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.