Home / 131,126,860.80-196,690,291.20-66,629,606.40

Finding the Fourth Proportional to 131,126,860.80, 196,690,291.20 and 66,629,606.40

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Solution

The fourth proportional to 131,126,860.80, 196,690,291.20 and 66,629,606.40 is: 99,944,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,126,860.80 : 196,690,291.20 = 66,629,606.40 : x
  2. Step 2: Convert to fraction form
    131,126,860.80/196,690,291.20 = 66,629,606.40/x
  3. Step 3: Cross multiply
    131,126,860.80x = 196,690,291.20 × 66,629,606.40
  4. Step 4: Simplify right side
    131,126,860.80x = 13,105,396,685,357,382
  5. Step 5: Solve for x
    x = 13,105,396,685,357,382/131,126,860.80
  6. Step 6: Final answer
    x = 99,944,409.60

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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.