Home / 2,188,021,221.20-3,282,031,831.80-656,211,429.20

Finding the Fourth Proportional to 2,188,021,221.20, 3,282,031,831.80 and 656,211,429.20

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Solution

The fourth proportional to 2,188,021,221.20, 3,282,031,831.80 and 656,211,429.20 is: 984,317,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188,021,221.20 : 3,282,031,831.80 = 656,211,429.20 : x
  2. Step 2: Convert to fraction form
    2,188,021,221.20/3,282,031,831.80 = 656,211,429.20/x
  3. Step 3: Cross multiply
    2,188,021,221.20x = 3,282,031,831.80 × 656,211,429.20
  4. Step 4: Simplify right side
    2,188,021,221.20x = 2,153,706,799,025,372,416
  5. Step 5: Solve for x
    x = 2,153,706,799,025,372,416/2,188,021,221.20
  6. Step 6: Final answer
    x = 984,317,143.80

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1.5x scale

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.