Home / 61,271,715.20-91,781,601.60-42,124,092.80

Finding the Fourth Proportional to 61,271,715.20, 91,781,601.60 and 42,124,092.80

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Solution

The fourth proportional to 61,271,715.20, 91,781,601.60 and 42,124,092.80 is: 63,099,534.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,271,715.20 : 91,781,601.60 = 42,124,092.80 : x
  2. Step 2: Convert to fraction form
    61,271,715.20/91,781,601.60 = 42,124,092.80/x
  3. Step 3: Cross multiply
    61,271,715.20x = 91,781,601.60 × 42,124,092.80
  4. Step 4: Simplify right side
    61,271,715.20x = 3,866,216,703,131,028
  5. Step 5: Solve for x
    x = 3,866,216,703,131,028/61,271,715.20
  6. Step 6: Final answer
    x = 63,099,534.43

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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.