Home / 442,871,726,976.20-664,243,093,209.90-128,770,098,048.20

Finding the Fourth Proportional to 442,871,726,976.20, 664,243,093,209.90 and 128,770,098,048.20

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Solution

The fourth proportional to 442,871,726,976.20, 664,243,093,209.90 and 128,770,098,048.20 is: 193,136,393,746.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,871,726,976.20 : 664,243,093,209.90 = 128,770,098,048.20 : x
  2. Step 2: Convert to fraction form
    442,871,726,976.20/664,243,093,209.90 = 128,770,098,048.20/x
  3. Step 3: Cross multiply
    442,871,726,976.20x = 664,243,093,209.90 × 128,770,098,048.20
  4. Step 4: Simplify right side
    442,871,726,976.20x = 85,534,648,240,478,470,799,360
  5. Step 5: Solve for x
    x = 85,534,648,240,478,470,799,360/442,871,726,976.20
  6. Step 6: Final answer
    x = 193,136,393,746.52

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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.