Home / 90,587,280.57-125,013,986.19-51,432,700.29

Finding the Fourth Proportional to 90,587,280.57, 125,013,986.19 and 51,432,700.29

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Solution

The fourth proportional to 90,587,280.57, 125,013,986.19 and 51,432,700.29 is: 70,979,135.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,587,280.57 : 125,013,986.19 = 51,432,700.29 : x
  2. Step 2: Convert to fraction form
    90,587,280.57/125,013,986.19 = 51,432,700.29/x
  3. Step 3: Cross multiply
    90,587,280.57x = 125,013,986.19 × 51,432,700.29
  4. Step 4: Simplify right side
    90,587,280.57x = 6,429,806,883,768,469
  5. Step 5: Solve for x
    x = 6,429,806,883,768,469/90,587,280.57
  6. Step 6: Final answer
    x = 70,979,135.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.