Home / 1,609,127,868.88-2,220,397,229.84-931,061,378.44

Finding the Fourth Proportional to 1,609,127,868.88, 2,220,397,229.84 and 931,061,378.44

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Solution

The fourth proportional to 1,609,127,868.88, 2,220,397,229.84 and 931,061,378.44 is: 1,284,749,425.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609,127,868.88 : 2,220,397,229.84 = 931,061,378.44 : x
  2. Step 2: Convert to fraction form
    1,609,127,868.88/2,220,397,229.84 = 931,061,378.44/x
  3. Step 3: Cross multiply
    1,609,127,868.88x = 2,220,397,229.84 × 931,061,378.44
  4. Step 4: Simplify right side
    1,609,127,868.88x = 2,067,326,105,499,188,224
  5. Step 5: Solve for x
    x = 2,067,326,105,499,188,224/1,609,127,868.88
  6. Step 6: Final answer
    x = 1,284,749,425.75

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.