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Finding the Fourth Proportional to 1,375,808,017.68, 2,063,557,480.80 and 379,970,619.12

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Solution

The fourth proportional to 1,375,808,017.68, 2,063,557,480.80 and 379,970,619.12 is: 569,913,246.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,808,017.68 : 2,063,557,480.80 = 379,970,619.12 : x
  2. Step 2: Convert to fraction form
    1,375,808,017.68/2,063,557,480.80 = 379,970,619.12/x
  3. Step 3: Cross multiply
    1,375,808,017.68x = 2,063,557,480.80 × 379,970,619.12
  4. Step 4: Simplify right side
    1,375,808,017.68x = 784,091,213,569,283,456
  5. Step 5: Solve for x
    x = 784,091,213,569,283,456/1,375,808,017.68
  6. Step 6: Final answer
    x = 569,913,246.25

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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.