Home / 20,124,355.68-30,186,176.31-4,978,287.18

Finding the Fourth Proportional to 20,124,355.68, 30,186,176.31 and 4,978,287.18

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Solution

The fourth proportional to 20,124,355.68, 30,186,176.31 and 4,978,287.18 is: 7,467,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,124,355.68 : 30,186,176.31 = 4,978,287.18 : x
  2. Step 2: Convert to fraction form
    20,124,355.68/30,186,176.31 = 4,978,287.18/x
  3. Step 3: Cross multiply
    20,124,355.68x = 30,186,176.31 × 4,978,287.18
  4. Step 4: Simplify right side
    20,124,355.68x = 150,275,454,537,292.69
  5. Step 5: Solve for x
    x = 150,275,454,537,292.69/20,124,355.68
  6. Step 6: Final answer
    x = 7,467,342.40

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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.