Home / 60,480,480.80-90,720,721.20-20,090,964.80

Finding the Fourth Proportional to 60,480,480.80, 90,720,721.20 and 20,090,964.80

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Solution

The fourth proportional to 60,480,480.80, 90,720,721.20 and 20,090,964.80 is: 30,136,447.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,480,480.80 : 90,720,721.20 = 20,090,964.80 : x
  2. Step 2: Convert to fraction form
    60,480,480.80/90,720,721.20 = 20,090,964.80/x
  3. Step 3: Cross multiply
    60,480,480.80x = 90,720,721.20 × 20,090,964.80
  4. Step 4: Simplify right side
    60,480,480.80x = 1,822,666,816,259,814
  5. Step 5: Solve for x
    x = 1,822,666,816,259,814/60,480,480.80
  6. Step 6: Final answer
    x = 30,136,447.20

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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.