Home / 121,382,669.60-182,074,004.40-82,640,620.70

Finding the Fourth Proportional to 121,382,669.60, 182,074,004.40 and 82,640,620.70

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Solution

The fourth proportional to 121,382,669.60, 182,074,004.40 and 82,640,620.70 is: 123,960,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,382,669.60 : 182,074,004.40 = 82,640,620.70 : x
  2. Step 2: Convert to fraction form
    121,382,669.60/182,074,004.40 = 82,640,620.70/x
  3. Step 3: Cross multiply
    121,382,669.60x = 182,074,004.40 × 82,640,620.70
  4. Step 4: Simplify right side
    121,382,669.60x = 15,046,708,736,950,532
  5. Step 5: Solve for x
    x = 15,046,708,736,950,532/121,382,669.60
  6. Step 6: Final answer
    x = 123,960,931.05

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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.