Home / 19,872,003.20-29,808,004.80-18,612,291.20

Finding the Fourth Proportional to 19,872,003.20, 29,808,004.80 and 18,612,291.20

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Solution

The fourth proportional to 19,872,003.20, 29,808,004.80 and 18,612,291.20 is: 27,918,436.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872,003.20 : 29,808,004.80 = 18,612,291.20 : x
  2. Step 2: Convert to fraction form
    19,872,003.20/29,808,004.80 = 18,612,291.20/x
  3. Step 3: Cross multiply
    19,872,003.20x = 29,808,004.80 × 18,612,291.20
  4. Step 4: Simplify right side
    19,872,003.20x = 554,795,265,428,597.75
  5. Step 5: Solve for x
    x = 554,795,265,428,597.75/19,872,003.20
  6. Step 6: Final answer
    x = 27,918,436.80

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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.