Home / 72,806,785.38-100,472,702.28-39,767,027.58

Finding the Fourth Proportional to 72,806,785.38, 100,472,702.28 and 39,767,027.58

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Solution

The fourth proportional to 72,806,785.38, 100,472,702.28 and 39,767,027.58 is: 54,878,136.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,806,785.38 : 100,472,702.28 = 39,767,027.58 : x
  2. Step 2: Convert to fraction form
    72,806,785.38/100,472,702.28 = 39,767,027.58/x
  3. Step 3: Cross multiply
    72,806,785.38x = 100,472,702.28 × 39,767,027.58
  4. Step 4: Simplify right side
    72,806,785.38x = 3,995,500,722,605,889
  5. Step 5: Solve for x
    x = 3,995,500,722,605,889/72,806,785.38
  6. Step 6: Final answer
    x = 54,878,136.73

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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.