Home / 87,743,151.04-121,211,675.92-70,078,861.68

Finding the Fourth Proportional to 87,743,151.04, 121,211,675.92 and 70,078,861.68

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Solution

The fourth proportional to 87,743,151.04, 121,211,675.92 and 70,078,861.68 is: 96,809,564.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,743,151.04 : 121,211,675.92 = 70,078,861.68 : x
  2. Step 2: Convert to fraction form
    87,743,151.04/121,211,675.92 = 70,078,861.68/x
  3. Step 3: Cross multiply
    87,743,151.04x = 121,211,675.92 × 70,078,861.68
  4. Step 4: Simplify right side
    87,743,151.04x = 8,494,376,270,798,668
  5. Step 5: Solve for x
    x = 8,494,376,270,798,668/87,743,151.04
  6. Step 6: Final answer
    x = 96,809,564.85

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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.