Home / 138,041,143.40-207,136,364.70-61,376,004.20

Finding the Fourth Proportional to 138,041,143.40, 207,136,364.70 and 61,376,004.20

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Solution

The fourth proportional to 138,041,143.40, 207,136,364.70 and 61,376,004.20 is: 92,097,197.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,041,143.40 : 207,136,364.70 = 61,376,004.20 : x
  2. Step 2: Convert to fraction form
    138,041,143.40/207,136,364.70 = 61,376,004.20/x
  3. Step 3: Cross multiply
    138,041,143.40x = 207,136,364.70 × 61,376,004.20
  4. Step 4: Simplify right side
    138,041,143.40x = 12,713,202,389,799,932
  5. Step 5: Solve for x
    x = 12,713,202,389,799,932/138,041,143.40
  6. Step 6: Final answer
    x = 92,097,197.09

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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.