Home / 139,969,168.20-209,953,752.30-131,459,113.80

Finding the Fourth Proportional to 139,969,168.20, 209,953,752.30 and 131,459,113.80

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Solution

The fourth proportional to 139,969,168.20, 209,953,752.30 and 131,459,113.80 is: 197,188,670.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,168.20 : 209,953,752.30 = 131,459,113.80 : x
  2. Step 2: Convert to fraction form
    139,969,168.20/209,953,752.30 = 131,459,113.80/x
  3. Step 3: Cross multiply
    139,969,168.20x = 209,953,752.30 × 131,459,113.80
  4. Step 4: Simplify right side
    139,969,168.20x = 27,600,334,216,342,712
  5. Step 5: Solve for x
    x = 27,600,334,216,342,712/139,969,168.20
  6. Step 6: Final answer
    x = 197,188,670.70

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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.