Home / 79,760,937.80-119,641,406.70-68,281,812.20

Finding the Fourth Proportional to 79,760,937.80, 119,641,406.70 and 68,281,812.20

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Solution

The fourth proportional to 79,760,937.80, 119,641,406.70 and 68,281,812.20 is: 102,422,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,760,937.80 : 119,641,406.70 = 68,281,812.20 : x
  2. Step 2: Convert to fraction form
    79,760,937.80/119,641,406.70 = 68,281,812.20/x
  3. Step 3: Cross multiply
    79,760,937.80x = 119,641,406.70 × 68,281,812.20
  4. Step 4: Simplify right side
    79,760,937.80x = 8,169,332,063,633,222
  5. Step 5: Solve for x
    x = 8,169,332,063,633,222/79,760,937.80
  6. Step 6: Final answer
    x = 102,422,718.30

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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.