Home / 142,437,658.60-196,561,614.18-80,555,674.60

Finding the Fourth Proportional to 142,437,658.60, 196,561,614.18 and 80,555,674.60

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Solution

The fourth proportional to 142,437,658.60, 196,561,614.18 and 80,555,674.60 is: 111,165,499.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,437,658.60 : 196,561,614.18 = 80,555,674.60 : x
  2. Step 2: Convert to fraction form
    142,437,658.60/196,561,614.18 = 80,555,674.60/x
  3. Step 3: Cross multiply
    142,437,658.60x = 196,561,614.18 × 80,555,674.60
  4. Step 4: Simplify right side
    142,437,658.60x = 15,834,153,430,734,826
  5. Step 5: Solve for x
    x = 15,834,153,430,734,826/142,437,658.60
  6. Step 6: Final answer
    x = 111,165,499.25

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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.