Home / 82,298,984.40-123,322,505.40-77,764,021.20

Finding the Fourth Proportional to 82,298,984.40, 123,322,505.40 and 77,764,021.20

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Solution

The fourth proportional to 82,298,984.40, 123,322,505.40 and 77,764,021.20 is: 116,527,002.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,298,984.40 : 123,322,505.40 = 77,764,021.20 : x
  2. Step 2: Convert to fraction form
    82,298,984.40/123,322,505.40 = 77,764,021.20/x
  3. Step 3: Cross multiply
    82,298,984.40x = 123,322,505.40 × 77,764,021.20
  4. Step 4: Simplify right side
    82,298,984.40x = 9,590,053,924,362,716
  5. Step 5: Solve for x
    x = 9,590,053,924,362,716/82,298,984.40
  6. Step 6: Final answer
    x = 116,527,002.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.