Home / 142,405,474.28-196,523,418.72-80,535,065

Finding the Fourth Proportional to 142,405,474.28, 196,523,418.72 and 80,535,065

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Solution

The fourth proportional to 142,405,474.28, 196,523,418.72 and 80,535,065 is: 111,140,575.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,405,474.28 : 196,523,418.72 = 80,535,065 : x
  2. Step 2: Convert to fraction form
    142,405,474.28/196,523,418.72 = 80,535,065/x
  3. Step 3: Cross multiply
    142,405,474.28x = 196,523,418.72 × 80,535,065
  4. Step 4: Simplify right side
    142,405,474.28x = 15,827,026,300,637,416
  5. Step 5: Solve for x
    x = 15,827,026,300,637,416/142,405,474.28
  6. Step 6: Final answer
    x = 111,140,575.04

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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.