Home / 168,490,831.40-252,736,247.10-137,879,829.80

Finding the Fourth Proportional to 168,490,831.40, 252,736,247.10 and 137,879,829.80

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Solution

The fourth proportional to 168,490,831.40, 252,736,247.10 and 137,879,829.80 is: 206,819,744.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,490,831.40 : 252,736,247.10 = 137,879,829.80 : x
  2. Step 2: Convert to fraction form
    168,490,831.40/252,736,247.10 = 137,879,829.80/x
  3. Step 3: Cross multiply
    168,490,831.40x = 252,736,247.10 × 137,879,829.80
  4. Step 4: Simplify right side
    168,490,831.40x = 34,847,230,734,438,744
  5. Step 5: Solve for x
    x = 34,847,230,734,438,744/168,490,831.40
  6. Step 6: Final answer
    x = 206,819,744.70

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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.