Home / 82,545,034.50-114,028,700.40-66,134,136.42

Finding the Fourth Proportional to 82,545,034.50, 114,028,700.40 and 66,134,136.42

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Solution

The fourth proportional to 82,545,034.50, 114,028,700.40 and 66,134,136.42 is: 91,358,489.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,545,034.50 : 114,028,700.40 = 66,134,136.42 : x
  2. Step 2: Convert to fraction form
    82,545,034.50/114,028,700.40 = 66,134,136.42/x
  3. Step 3: Cross multiply
    82,545,034.50x = 114,028,700.40 × 66,134,136.42
  4. Step 4: Simplify right side
    82,545,034.50x = 7,541,189,628,048,909
  5. Step 5: Solve for x
    x = 7,541,189,628,048,909/82,545,034.50
  6. Step 6: Final answer
    x = 91,358,489.02

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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.