Home / 21,428,330.34-29,570,592.92-12,608,352.88

Finding the Fourth Proportional to 21,428,330.34, 29,570,592.92 and 12,608,352.88

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Solution

The fourth proportional to 21,428,330.34, 29,570,592.92 and 12,608,352.88 is: 17,399,231.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,428,330.34 : 29,570,592.92 = 12,608,352.88 : x
  2. Step 2: Convert to fraction form
    21,428,330.34/29,570,592.92 = 12,608,352.88/x
  3. Step 3: Cross multiply
    21,428,330.34x = 29,570,592.92 × 12,608,352.88
  4. Step 4: Simplify right side
    21,428,330.34x = 372,836,470,343,147.88
  5. Step 5: Solve for x
    x = 372,836,470,343,147.88/21,428,330.34
  6. Step 6: Final answer
    x = 17,399,231.04

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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.