Home / 140,698,306.29-194,163,515.42-78,819,080.43

Finding the Fourth Proportional to 140,698,306.29, 194,163,515.42 and 78,819,080.43

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Solution

The fourth proportional to 140,698,306.29, 194,163,515.42 and 78,819,080.43 is: 108,770,248.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,698,306.29 : 194,163,515.42 = 78,819,080.43 : x
  2. Step 2: Convert to fraction form
    140,698,306.29/194,163,515.42 = 78,819,080.43/x
  3. Step 3: Cross multiply
    140,698,306.29x = 194,163,515.42 × 78,819,080.43
  4. Step 4: Simplify right side
    140,698,306.29x = 15,303,789,738,460,526
  5. Step 5: Solve for x
    x = 15,303,789,738,460,526/140,698,306.29
  6. Step 6: Final answer
    x = 108,770,248.50

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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.