Home / 72,817,049.80-109,224,826.60-42,092,079.02

Finding the Fourth Proportional to 72,817,049.80, 109,224,826.60 and 42,092,079.02

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Solution

The fourth proportional to 72,817,049.80, 109,224,826.60 and 42,092,079.02 is: 63,137,686.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,817,049.80 : 109,224,826.60 = 42,092,079.02 : x
  2. Step 2: Convert to fraction form
    72,817,049.80/109,224,826.60 = 42,092,079.02/x
  3. Step 3: Cross multiply
    72,817,049.80x = 109,224,826.60 × 42,092,079.02
  4. Step 4: Simplify right side
    72,817,049.80x = 4,597,500,032,192,998
  5. Step 5: Solve for x
    x = 4,597,500,032,192,998/72,817,049.80
  6. Step 6: Final answer
    x = 63,137,686.09

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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.