Home / 212,668,059,479.68-319,002,629,517.60-86,898,656,681.44

Finding the Fourth Proportional to 212,668,059,479.68, 319,002,629,517.60 and 86,898,656,681.44

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Solution

The fourth proportional to 212,668,059,479.68, 319,002,629,517.60 and 86,898,656,681.44 is: 130,348,205,794.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,668,059,479.68 : 319,002,629,517.60 = 86,898,656,681.44 : x
  2. Step 2: Convert to fraction form
    212,668,059,479.68/319,002,629,517.60 = 86,898,656,681.44/x
  3. Step 3: Cross multiply
    212,668,059,479.68x = 319,002,629,517.60 × 86,898,656,681.44
  4. Step 4: Simplify right side
    212,668,059,479.68x = 27,720,899,982,926,519,730,176
  5. Step 5: Solve for x
    x = 27,720,899,982,926,519,730,176/212,668,059,479.68
  6. Step 6: Final answer
    x = 130,348,205,794.28

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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.