Home / 406,728,000.80-610,092,001.20-130,378,680.80

Finding the Fourth Proportional to 406,728,000.80, 610,092,001.20 and 130,378,680.80

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Solution

The fourth proportional to 406,728,000.80, 610,092,001.20 and 130,378,680.80 is: 195,568,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,728,000.80 : 610,092,001.20 = 130,378,680.80 : x
  2. Step 2: Convert to fraction form
    406,728,000.80/610,092,001.20 = 130,378,680.80/x
  3. Step 3: Cross multiply
    406,728,000.80x = 610,092,001.20 × 130,378,680.80
  4. Step 4: Simplify right side
    406,728,000.80x = 79,542,990,283,088,016
  5. Step 5: Solve for x
    x = 79,542,990,283,088,016/406,728,000.80
  6. Step 6: Final answer
    x = 195,568,021.20

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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.