Home / 141,696,002.80-212,544,004.20-128,930,921.20

Finding the Fourth Proportional to 141,696,002.80, 212,544,004.20 and 128,930,921.20

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Solution

The fourth proportional to 141,696,002.80, 212,544,004.20 and 128,930,921.20 is: 193,396,381.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,696,002.80 : 212,544,004.20 = 128,930,921.20 : x
  2. Step 2: Convert to fraction form
    141,696,002.80/212,544,004.20 = 128,930,921.20/x
  3. Step 3: Cross multiply
    141,696,002.80x = 212,544,004.20 × 128,930,921.20
  4. Step 4: Simplify right side
    141,696,002.80x = 27,403,494,257,042,668
  5. Step 5: Solve for x
    x = 27,403,494,257,042,668/141,696,002.80
  6. Step 6: Final answer
    x = 193,396,381.80

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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.