Home / 139,523,197.76-209,144,109.88-87,744,804.38

Finding the Fourth Proportional to 139,523,197.76, 209,144,109.88 and 87,744,804.38

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Solution

The fourth proportional to 139,523,197.76, 209,144,109.88 and 87,744,804.38 is: 131,528,730.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,523,197.76 : 209,144,109.88 = 87,744,804.38 : x
  2. Step 2: Convert to fraction form
    139,523,197.76/209,144,109.88 = 87,744,804.38/x
  3. Step 3: Cross multiply
    139,523,197.76x = 209,144,109.88 × 87,744,804.38
  4. Step 4: Simplify right side
    139,523,197.76x = 18,351,309,008,649,824
  5. Step 5: Solve for x
    x = 18,351,309,008,649,824/139,523,197.76
  6. Step 6: Final answer
    x = 131,528,730.01

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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.