Home / 72,869,491.25-100,557,149.51-39,829,461.65

Finding the Fourth Proportional to 72,869,491.25, 100,557,149.51 and 39,829,461.65

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Solution

The fourth proportional to 72,869,491.25, 100,557,149.51 and 39,829,461.65 is: 54,963,154.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,869,491.25 : 100,557,149.51 = 39,829,461.65 : x
  2. Step 2: Convert to fraction form
    72,869,491.25/100,557,149.51 = 39,829,461.65/x
  3. Step 3: Cross multiply
    72,869,491.25x = 100,557,149.51 × 39,829,461.65
  4. Step 4: Simplify right side
    72,869,491.25x = 4,005,137,129,339,928.50
  5. Step 5: Solve for x
    x = 4,005,137,129,339,928.50/72,869,491.25
  6. Step 6: Final answer
    x = 54,963,154.83

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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.