Home / 137,989,007.70-206,983,511.55-103,551,630.90

Finding the Fourth Proportional to 137,989,007.70, 206,983,511.55 and 103,551,630.90

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Solution

The fourth proportional to 137,989,007.70, 206,983,511.55 and 103,551,630.90 is: 155,327,446.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,989,007.70 : 206,983,511.55 = 103,551,630.90 : x
  2. Step 2: Convert to fraction form
    137,989,007.70/206,983,511.55 = 103,551,630.90/x
  3. Step 3: Cross multiply
    137,989,007.70x = 206,983,511.55 × 103,551,630.90
  4. Step 4: Simplify right side
    137,989,007.70x = 21,433,480,190,411,488
  5. Step 5: Solve for x
    x = 21,433,480,190,411,488/137,989,007.70
  6. Step 6: Final answer
    x = 155,327,446.35

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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.