Home / 18,120,835.19-25,006,755.81-9,972,073.19

Finding the Fourth Proportional to 18,120,835.19, 25,006,755.81 and 9,972,073.19

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Solution

The fourth proportional to 18,120,835.19, 25,006,755.81 and 9,972,073.19 is: 13,761,462.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120,835.19 : 25,006,755.81 = 9,972,073.19 : x
  2. Step 2: Convert to fraction form
    18,120,835.19/25,006,755.81 = 9,972,073.19/x
  3. Step 3: Cross multiply
    18,120,835.19x = 25,006,755.81 × 9,972,073.19
  4. Step 4: Simplify right side
    18,120,835.19x = 249,369,199,181,777.72
  5. Step 5: Solve for x
    x = 249,369,199,181,777.72/18,120,835.19
  6. Step 6: Final answer
    x = 13,761,462.79

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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.