Home / 427,862,574.27-641,854,800.54-132,783,188.49

Finding the Fourth Proportional to 427,862,574.27, 641,854,800.54 and 132,783,188.49

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Solution

The fourth proportional to 427,862,574.27, 641,854,800.54 and 132,783,188.49 is: 199,193,694.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,862,574.27 : 641,854,800.54 = 132,783,188.49 : x
  2. Step 2: Convert to fraction form
    427,862,574.27/641,854,800.54 = 132,783,188.49/x
  3. Step 3: Cross multiply
    427,862,574.27x = 641,854,800.54 × 132,783,188.49
  4. Step 4: Simplify right side
    427,862,574.27x = 85,227,526,963,314,160
  5. Step 5: Solve for x
    x = 85,227,526,963,314,160/427,862,574.27
  6. Step 6: Final answer
    x = 199,193,694.63

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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.