Home / 12,347,242.40-18,522,831.90-5,155,074.20

Finding the Fourth Proportional to 12,347,242.40, 18,522,831.90 and 5,155,074.20

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Solution

The fourth proportional to 12,347,242.40, 18,522,831.90 and 5,155,074.20 is: 7,733,433.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347,242.40 : 18,522,831.90 = 5,155,074.20 : x
  2. Step 2: Convert to fraction form
    12,347,242.40/18,522,831.90 = 5,155,074.20/x
  3. Step 3: Cross multiply
    12,347,242.40x = 18,522,831.90 × 5,155,074.20
  4. Step 4: Simplify right side
    12,347,242.40x = 95,486,572,838,626.97
  5. Step 5: Solve for x
    x = 95,486,572,838,626.97/12,347,242.40
  6. Step 6: Final answer
    x = 7,733,433.08

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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.