Home / 145,457,132.91-200,735,107.07-79,381,879.61

Finding the Fourth Proportional to 145,457,132.91, 200,735,107.07 and 79,381,879.61

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Solution

The fourth proportional to 145,457,132.91, 200,735,107.07 and 79,381,879.61 is: 109,549,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,457,132.91 : 200,735,107.07 = 79,381,879.61 : x
  2. Step 2: Convert to fraction form
    145,457,132.91/200,735,107.07 = 79,381,879.61/x
  3. Step 3: Cross multiply
    145,457,132.91x = 200,735,107.07 × 79,381,879.61
  4. Step 4: Simplify right side
    145,457,132.91x = 15,934,730,101,530,616
  5. Step 5: Solve for x
    x = 15,934,730,101,530,616/145,457,132.91
  6. Step 6: Final answer
    x = 109,549,320.70

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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.