Home / 140,698,306.60-194,163,515.85-78,819,080.74

Finding the Fourth Proportional to 140,698,306.60, 194,163,515.85 and 78,819,080.74

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Solution

The fourth proportional to 140,698,306.60, 194,163,515.85 and 78,819,080.74 is: 108,770,248.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,698,306.60 : 194,163,515.85 = 78,819,080.74 : x
  2. Step 2: Convert to fraction form
    140,698,306.60/194,163,515.85 = 78,819,080.74/x
  3. Step 3: Cross multiply
    140,698,306.60x = 194,163,515.85 × 78,819,080.74
  4. Step 4: Simplify right side
    140,698,306.60x = 15,303,789,832,543,418
  5. Step 5: Solve for x
    x = 15,303,789,832,543,418/140,698,306.60
  6. Step 6: Final answer
    x = 108,770,248.93

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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.