Home / 21,240,227.80-29,300,903.22-13,409,445.16

Finding the Fourth Proportional to 21,240,227.80, 29,300,903.22 and 13,409,445.16

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Solution

The fourth proportional to 21,240,227.80, 29,300,903.22 and 13,409,445.16 is: 18,498,335.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,240,227.80 : 29,300,903.22 = 13,409,445.16 : x
  2. Step 2: Convert to fraction form
    21,240,227.80/29,300,903.22 = 13,409,445.16/x
  3. Step 3: Cross multiply
    21,240,227.80x = 29,300,903.22 × 13,409,445.16
  4. Step 4: Simplify right side
    21,240,227.80x = 392,908,854,867,057.38
  5. Step 5: Solve for x
    x = 392,908,854,867,057.38/21,240,227.80
  6. Step 6: Final answer
    x = 18,498,335.26

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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.