Home / 124,893,639.40-187,340,459.10-79,488,020.20

Finding the Fourth Proportional to 124,893,639.40, 187,340,459.10 and 79,488,020.20

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Solution

The fourth proportional to 124,893,639.40, 187,340,459.10 and 79,488,020.20 is: 119,232,030.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,893,639.40 : 187,340,459.10 = 79,488,020.20 : x
  2. Step 2: Convert to fraction form
    124,893,639.40/187,340,459.10 = 79,488,020.20/x
  3. Step 3: Cross multiply
    124,893,639.40x = 187,340,459.10 × 79,488,020.20
  4. Step 4: Simplify right side
    124,893,639.40x = 14,891,322,197,218,074
  5. Step 5: Solve for x
    x = 14,891,322,197,218,074/124,893,639.40
  6. Step 6: Final answer
    x = 119,232,030.30

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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.