Home / 73,291,721.69-109,937,489.67-18,704,308.42

Finding the Fourth Proportional to 73,291,721.69, 109,937,489.67 and 18,704,308.42

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Solution

The fourth proportional to 73,291,721.69, 109,937,489.67 and 18,704,308.42 is: 28,056,438.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,291,721.69 : 109,937,489.67 = 18,704,308.42 : x
  2. Step 2: Convert to fraction form
    73,291,721.69/109,937,489.67 = 18,704,308.42/x
  3. Step 3: Cross multiply
    73,291,721.69x = 109,937,489.67 × 18,704,308.42
  4. Step 4: Simplify right side
    73,291,721.69x = 2,056,304,713,363,259.25
  5. Step 5: Solve for x
    x = 2,056,304,713,363,259.25/73,291,721.69
  6. Step 6: Final answer
    x = 28,056,438.93

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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.