Home / 72,869,492.25-100,557,150.88-39,829,462.65

Finding the Fourth Proportional to 72,869,492.25, 100,557,150.88 and 39,829,462.65

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Solution

The fourth proportional to 72,869,492.25, 100,557,150.88 and 39,829,462.65 is: 54,963,156.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,869,492.25 : 100,557,150.88 = 39,829,462.65 : x
  2. Step 2: Convert to fraction form
    72,869,492.25/100,557,150.88 = 39,829,462.65/x
  3. Step 3: Cross multiply
    72,869,492.25x = 100,557,150.88 × 39,829,462.65
  4. Step 4: Simplify right side
    72,869,492.25x = 4,005,137,285,165,374.50
  5. Step 5: Solve for x
    x = 4,005,137,285,165,374.50/72,869,492.25
  6. Step 6: Final answer
    x = 54,963,156.21

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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.