Home / 30,587,245.89-42,181,058.41-20,551,439.88

Finding the Fourth Proportional to 30,587,245.89, 42,181,058.41 and 20,551,439.88

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Solution

The fourth proportional to 30,587,245.89, 42,181,058.41 and 20,551,439.88 is: 28,341,273.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,587,245.89 : 42,181,058.41 = 20,551,439.88 : x
  2. Step 2: Convert to fraction form
    30,587,245.89/42,181,058.41 = 20,551,439.88/x
  3. Step 3: Cross multiply
    30,587,245.89x = 42,181,058.41 × 20,551,439.88
  4. Step 4: Simplify right side
    30,587,245.89x = 866,881,485,936,504.75
  5. Step 5: Solve for x
    x = 866,881,485,936,504.75/30,587,245.89
  6. Step 6: Final answer
    x = 28,341,273.00

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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.