Home / 29,187,965.80-43,781,948.70-18,438,423.40

Finding the Fourth Proportional to 29,187,965.80, 43,781,948.70 and 18,438,423.40

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Solution

The fourth proportional to 29,187,965.80, 43,781,948.70 and 18,438,423.40 is: 27,657,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,187,965.80 : 43,781,948.70 = 18,438,423.40 : x
  2. Step 2: Convert to fraction form
    29,187,965.80/43,781,948.70 = 18,438,423.40/x
  3. Step 3: Cross multiply
    29,187,965.80x = 43,781,948.70 × 18,438,423.40
  4. Step 4: Simplify right side
    29,187,965.80x = 807,270,107,407,679.62
  5. Step 5: Solve for x
    x = 807,270,107,407,679.62/29,187,965.80
  6. Step 6: Final answer
    x = 27,657,635.10

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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.