Home / 15,247,650,487.50-21,042,268,615.38-8,473,754,525.79

Finding the Fourth Proportional to 15,247,650,487.50, 21,042,268,615.38 and 8,473,754,525.79

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Solution

The fourth proportional to 15,247,650,487.50, 21,042,268,615.38 and 8,473,754,525.79 is: 11,694,065,197.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,247,650,487.50 : 21,042,268,615.38 = 8,473,754,525.79 : x
  2. Step 2: Convert to fraction form
    15,247,650,487.50/21,042,268,615.38 = 8,473,754,525.79/x
  3. Step 3: Cross multiply
    15,247,650,487.50x = 21,042,268,615.38 × 8,473,754,525.79
  4. Step 4: Simplify right side
    15,247,650,487.50x = 178,307,018,912,465,158,144
  5. Step 5: Solve for x
    x = 178,307,018,912,465,158,144/15,247,650,487.50
  6. Step 6: Final answer
    x = 11,694,065,197.69

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Double scale
Find fourth proportional to 15,247,650,488.50, 21,042,268,616.76 and 8,473,754,526.79
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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.