Home / 442,871,727,013.20-664,243,093,265.40-128,770,098,085.20

Finding the Fourth Proportional to 442,871,727,013.20, 664,243,093,265.40 and 128,770,098,085.20

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Solution

The fourth proportional to 442,871,727,013.20, 664,243,093,265.40 and 128,770,098,085.20 is: 193,136,393,802.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,871,727,013.20 : 664,243,093,265.40 = 128,770,098,085.20 : x
  2. Step 2: Convert to fraction form
    442,871,727,013.20/664,243,093,265.40 = 128,770,098,085.20/x
  3. Step 3: Cross multiply
    442,871,727,013.20x = 664,243,093,265.40 × 128,770,098,085.20
  4. Step 4: Simplify right side
    442,871,727,013.20x = 85,534,648,272,202,206,543,872
  5. Step 5: Solve for x
    x = 85,534,648,272,202,206,543,872/442,871,727,013.20
  6. Step 6: Final answer
    x = 193,136,393,802.02

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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.