Home / 120,981,725.40-181,472,588.10-40,202,693.40

Finding the Fourth Proportional to 120,981,725.40, 181,472,588.10 and 40,202,693.40

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Solution

The fourth proportional to 120,981,725.40, 181,472,588.10 and 40,202,693.40 is: 60,304,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,981,725.40 : 181,472,588.10 = 40,202,693.40 : x
  2. Step 2: Convert to fraction form
    120,981,725.40/181,472,588.10 = 40,202,693.40/x
  3. Step 3: Cross multiply
    120,981,725.40x = 181,472,588.10 × 40,202,693.40
  4. Step 4: Simplify right side
    120,981,725.40x = 7,295,686,819,888,788
  5. Step 5: Solve for x
    x = 7,295,686,819,888,788/120,981,725.40
  6. Step 6: Final answer
    x = 60,304,040.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.