Home / 866,143,727.20-1,299,215,590.80-406,978,703.20

Finding the Fourth Proportional to 866,143,727.20, 1,299,215,590.80 and 406,978,703.20

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Solution

The fourth proportional to 866,143,727.20, 1,299,215,590.80 and 406,978,703.20 is: 610,468,054.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,143,727.20 : 1,299,215,590.80 = 406,978,703.20 : x
  2. Step 2: Convert to fraction form
    866,143,727.20/1,299,215,590.80 = 406,978,703.20/x
  3. Step 3: Cross multiply
    866,143,727.20x = 1,299,215,590.80 × 406,978,703.20
  4. Step 4: Simplify right side
    866,143,727.20x = 528,753,076,321,005,824
  5. Step 5: Solve for x
    x = 528,753,076,321,005,824/866,143,727.20
  6. Step 6: Final answer
    x = 610,468,054.80

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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.