Home / 139,523,218.07-209,144,140.22-87,744,824.84

Finding the Fourth Proportional to 139,523,218.07, 209,144,140.22 and 87,744,824.84

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Solution

The fourth proportional to 139,523,218.07, 209,144,140.22 and 87,744,824.84 is: 131,528,760.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,523,218.07 : 209,144,140.22 = 87,744,824.84 : x
  2. Step 2: Convert to fraction form
    139,523,218.07/209,144,140.22 = 87,744,824.84/x
  3. Step 3: Cross multiply
    139,523,218.07x = 209,144,140.22 × 87,744,824.84
  4. Step 4: Simplify right side
    139,523,218.07x = 18,351,315,950,658,520
  5. Step 5: Solve for x
    x = 18,351,315,950,658,520/139,523,218.07
  6. Step 6: Final answer
    x = 131,528,760.63

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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.