Home / 3,985,838,306.80-5,980,458,071.40-1,914,493,865.20

Finding the Fourth Proportional to 3,985,838,306.80, 5,980,458,071.40 and 1,914,493,865.20

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Solution

The fourth proportional to 3,985,838,306.80, 5,980,458,071.40 and 1,914,493,865.20 is: 2,872,557,642.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,838,306.80 : 5,980,458,071.40 = 1,914,493,865.20 : x
  2. Step 2: Convert to fraction form
    3,985,838,306.80/5,980,458,071.40 = 1,914,493,865.20/x
  3. Step 3: Cross multiply
    3,985,838,306.80x = 5,980,458,071.40 × 1,914,493,865.20
  4. Step 4: Simplify right side
    3,985,838,306.80x = 11,449,550,288,781,123,584
  5. Step 5: Solve for x
    x = 11,449,550,288,781,123,584/3,985,838,306.80
  6. Step 6: Final answer
    x = 2,872,557,642.20

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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.