Home / 18,202,761.49-25,119,641.04-9,942,820.61

Finding the Fourth Proportional to 18,202,761.49, 25,119,641.04 and 9,942,820.61

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Solution

The fourth proportional to 18,202,761.49, 25,119,641.04 and 9,942,820.61 is: 13,720,999.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,202,761.49 : 25,119,641.04 = 9,942,820.61 : x
  2. Step 2: Convert to fraction form
    18,202,761.49/25,119,641.04 = 9,942,820.61/x
  3. Step 3: Cross multiply
    18,202,761.49x = 25,119,641.04 × 9,942,820.61
  4. Step 4: Simplify right side
    18,202,761.49x = 249,760,084,598,599.72
  5. Step 5: Solve for x
    x = 249,760,084,598,599.72/18,202,761.49
  6. Step 6: Final answer
    x = 13,720,999.68

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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.