Home / 67,285,128.74-100,944,715.73-18,762,987.62

Finding the Fourth Proportional to 67,285,128.74, 100,944,715.73 and 18,762,987.62

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Solution

The fourth proportional to 67,285,128.74, 100,944,715.73 and 18,762,987.62 is: 28,149,228.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,285,128.74 : 100,944,715.73 = 18,762,987.62 : x
  2. Step 2: Convert to fraction form
    67,285,128.74/100,944,715.73 = 18,762,987.62/x
  3. Step 3: Cross multiply
    67,285,128.74x = 100,944,715.73 × 18,762,987.62
  4. Step 4: Simplify right side
    67,285,128.74x = 1,894,024,451,704,955.75
  5. Step 5: Solve for x
    x = 1,894,024,451,704,955.75/67,285,128.74
  6. Step 6: Final answer
    x = 28,149,228.33

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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.