Home / 139,523,006.53-209,143,822.50-87,744,613.62

Finding the Fourth Proportional to 139,523,006.53, 209,143,822.50 and 87,744,613.62

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Solution

The fourth proportional to 139,523,006.53, 209,143,822.50 and 87,744,613.62 is: 131,528,443.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,523,006.53 : 209,143,822.50 = 87,744,613.62 : x
  2. Step 2: Convert to fraction form
    139,523,006.53/209,143,822.50 = 87,744,613.62/x
  3. Step 3: Cross multiply
    139,523,006.53x = 209,143,822.50 × 87,744,613.62
  4. Step 4: Simplify right side
    139,523,006.53x = 18,351,243,896,272,364
  5. Step 5: Solve for x
    x = 18,351,243,896,272,364/139,523,006.53
  6. Step 6: Final answer
    x = 131,528,443.61

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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.