Home / 72,291,507.04-99,764,013.12-39,253,148.56

Finding the Fourth Proportional to 72,291,507.04, 99,764,013.12 and 39,253,148.56

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Solution

The fourth proportional to 72,291,507.04, 99,764,013.12 and 39,253,148.56 is: 54,170,286.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,291,507.04 : 99,764,013.12 = 39,253,148.56 : x
  2. Step 2: Convert to fraction form
    72,291,507.04/99,764,013.12 = 39,253,148.56/x
  3. Step 3: Cross multiply
    72,291,507.04x = 99,764,013.12 × 39,253,148.56
  4. Step 4: Simplify right side
    72,291,507.04x = 3,916,051,627,941,149.50
  5. Step 5: Solve for x
    x = 3,916,051,627,941,149.50/72,291,507.04
  6. Step 6: Final answer
    x = 54,170,286.22

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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.