Home / 5,425,828.12-7,487,613.24-2,978,480.80

Finding the Fourth Proportional to 5,425,828.12, 7,487,613.24 and 2,978,480.80

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Solution

The fourth proportional to 5,425,828.12, 7,487,613.24 and 2,978,480.80 is: 4,110,287.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425,828.12 : 7,487,613.24 = 2,978,480.80 : x
  2. Step 2: Convert to fraction form
    5,425,828.12/7,487,613.24 = 2,978,480.80/x
  3. Step 3: Cross multiply
    5,425,828.12x = 7,487,613.24 × 2,978,480.80
  4. Step 4: Simplify right side
    5,425,828.12x = 22,301,712,271,356.01
  5. Step 5: Solve for x
    x = 22,301,712,271,356.01/5,425,828.12
  6. Step 6: Final answer
    x = 4,110,287.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.