Home / 45,320,143.80-67,980,215.70-39,155,428.20

Finding the Fourth Proportional to 45,320,143.80, 67,980,215.70 and 39,155,428.20

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Solution

The fourth proportional to 45,320,143.80, 67,980,215.70 and 39,155,428.20 is: 58,733,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,320,143.80 : 67,980,215.70 = 39,155,428.20 : x
  2. Step 2: Convert to fraction form
    45,320,143.80/67,980,215.70 = 39,155,428.20/x
  3. Step 3: Cross multiply
    45,320,143.80x = 67,980,215.70 × 39,155,428.20
  4. Step 4: Simplify right side
    45,320,143.80x = 2,661,794,454,861,863
  5. Step 5: Solve for x
    x = 2,661,794,454,861,863/45,320,143.80
  6. Step 6: Final answer
    x = 58,733,142.30

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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.