Home / 129,884,670.64-179,172,890.76-80,309,197.36

Finding the Fourth Proportional to 129,884,670.64, 179,172,890.76 and 80,309,197.36

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Solution

The fourth proportional to 129,884,670.64, 179,172,890.76 and 80,309,197.36 is: 110,784,675.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,884,670.64 : 179,172,890.76 = 80,309,197.36 : x
  2. Step 2: Convert to fraction form
    129,884,670.64/179,172,890.76 = 80,309,197.36/x
  3. Step 3: Cross multiply
    129,884,670.64x = 179,172,890.76 × 80,309,197.36
  4. Step 4: Simplify right side
    129,884,670.64x = 14,389,231,045,606,560
  5. Step 5: Solve for x
    x = 14,389,231,045,606,560/129,884,670.64
  6. Step 6: Final answer
    x = 110,784,675.16

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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.