Home / 124,608,031.40-186,912,047.10-81,609,861.80

Finding the Fourth Proportional to 124,608,031.40, 186,912,047.10 and 81,609,861.80

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Solution

The fourth proportional to 124,608,031.40, 186,912,047.10 and 81,609,861.80 is: 122,414,792.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,608,031.40 : 186,912,047.10 = 81,609,861.80 : x
  2. Step 2: Convert to fraction form
    124,608,031.40/186,912,047.10 = 81,609,861.80/x
  3. Step 3: Cross multiply
    124,608,031.40x = 186,912,047.10 × 81,609,861.80
  4. Step 4: Simplify right side
    124,608,031.40x = 15,253,866,332,586,090
  5. Step 5: Solve for x
    x = 15,253,866,332,586,090/124,608,031.40
  6. Step 6: Final answer
    x = 122,414,792.70

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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.