Home / 12,155,197.76-18,226,065-4,971,776.48

Finding the Fourth Proportional to 12,155,197.76, 18,226,065 and 4,971,776.48

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Solution

The fourth proportional to 12,155,197.76, 18,226,065 and 4,971,776.48 is: 7,454,911.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,155,197.76 : 18,226,065 = 4,971,776.48 : x
  2. Step 2: Convert to fraction form
    12,155,197.76/18,226,065 = 4,971,776.48/x
  3. Step 3: Cross multiply
    12,155,197.76x = 18,226,065 × 4,971,776.48
  4. Step 4: Simplify right side
    12,155,197.76x = 90,615,921,289,951.20
  5. Step 5: Solve for x
    x = 90,615,921,289,951.20/12,155,197.76
  6. Step 6: Final answer
    x = 7,454,911.31

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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.