Home / 139,523,008.04-209,143,824.75-87,744,615.12

Finding the Fourth Proportional to 139,523,008.04, 209,143,824.75 and 87,744,615.12

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Solution

The fourth proportional to 139,523,008.04, 209,143,824.75 and 87,744,615.12 is: 131,528,445.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,523,008.04 : 209,143,824.75 = 87,744,615.12 : x
  2. Step 2: Convert to fraction form
    139,523,008.04/209,143,824.75 = 87,744,615.12/x
  3. Step 3: Cross multiply
    139,523,008.04x = 209,143,824.75 × 87,744,615.12
  4. Step 4: Simplify right side
    139,523,008.04x = 18,351,244,407,413,480
  5. Step 5: Solve for x
    x = 18,351,244,407,413,480/139,523,008.04
  6. Step 6: Final answer
    x = 131,528,445.85

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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.