Home / 1,381,125,276.80-2,071,687,915.20-359,918,748.80

Finding the Fourth Proportional to 1,381,125,276.80, 2,071,687,915.20 and 359,918,748.80

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Solution

The fourth proportional to 1,381,125,276.80, 2,071,687,915.20 and 359,918,748.80 is: 539,878,123.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,125,276.80 : 2,071,687,915.20 = 359,918,748.80 : x
  2. Step 2: Convert to fraction form
    1,381,125,276.80/2,071,687,915.20 = 359,918,748.80/x
  3. Step 3: Cross multiply
    1,381,125,276.80x = 2,071,687,915.20 × 359,918,748.80
  4. Step 4: Simplify right side
    1,381,125,276.80x = 745,639,322,342,864,512
  5. Step 5: Solve for x
    x = 745,639,322,342,864,512/1,381,125,276.80
  6. Step 6: Final answer
    x = 539,878,123.20

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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.