Home / 138,041,154.40-207,136,381.20-61,376,015.20

Finding the Fourth Proportional to 138,041,154.40, 207,136,381.20 and 61,376,015.20

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Solution

The fourth proportional to 138,041,154.40, 207,136,381.20 and 61,376,015.20 is: 92,097,213.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,041,154.40 : 207,136,381.20 = 61,376,015.20 : x
  2. Step 2: Convert to fraction form
    138,041,154.40/207,136,381.20 = 61,376,015.20/x
  3. Step 3: Cross multiply
    138,041,154.40x = 207,136,381.20 × 61,376,015.20
  4. Step 4: Simplify right side
    138,041,154.40x = 12,713,205,681,004,194
  5. Step 5: Solve for x
    x = 12,713,205,681,004,194/138,041,154.40
  6. Step 6: Final answer
    x = 92,097,213.59

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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.