Home / 137,989,008.20-206,983,512.30-103,551,631.40

Finding the Fourth Proportional to 137,989,008.20, 206,983,512.30 and 103,551,631.40

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Solution

The fourth proportional to 137,989,008.20, 206,983,512.30 and 103,551,631.40 is: 155,327,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,989,008.20 : 206,983,512.30 = 103,551,631.40 : x
  2. Step 2: Convert to fraction form
    137,989,008.20/206,983,512.30 = 103,551,631.40/x
  3. Step 3: Cross multiply
    137,989,008.20x = 206,983,512.30 × 103,551,631.40
  4. Step 4: Simplify right side
    137,989,008.20x = 21,433,480,371,566,968
  5. Step 5: Solve for x
    x = 21,433,480,371,566,968/137,989,008.20
  6. Step 6: Final answer
    x = 155,327,447.10

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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.