Home / 61,029,337.50-91,536,753.69-20,078,621.24

Finding the Fourth Proportional to 61,029,337.50, 91,536,753.69 and 20,078,621.24

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Solution

The fourth proportional to 61,029,337.50, 91,536,753.69 and 20,078,621.24 is: 30,115,545.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,029,337.50 : 91,536,753.69 = 20,078,621.24 : x
  2. Step 2: Convert to fraction form
    61,029,337.50/91,536,753.69 = 20,078,621.24/x
  3. Step 3: Cross multiply
    61,029,337.50x = 91,536,753.69 × 20,078,621.24
  4. Step 4: Simplify right side
    61,029,337.50x = 1,837,931,806,422,998.50
  5. Step 5: Solve for x
    x = 1,837,931,806,422,998.50/61,029,337.50
  6. Step 6: Final answer
    x = 30,115,545.76

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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.