Home / 139,231,213.18-192,127,825.98-80,497,663.32

Finding the Fourth Proportional to 139,231,213.18, 192,127,825.98 and 80,497,663.32

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Solution

The fourth proportional to 139,231,213.18, 192,127,825.98 and 80,497,663.32 is: 111,080,272.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,231,213.18 : 192,127,825.98 = 80,497,663.32 : x
  2. Step 2: Convert to fraction form
    139,231,213.18/192,127,825.98 = 80,497,663.32/x
  3. Step 3: Cross multiply
    139,231,213.18x = 192,127,825.98 × 80,497,663.32
  4. Step 4: Simplify right side
    139,231,213.18x = 15,465,841,050,141,586
  5. Step 5: Solve for x
    x = 15,465,841,050,141,586/139,231,213.18
  6. Step 6: Final answer
    x = 111,080,272.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.