Home / 279,086,393.56-418,597,700.10-74,630,418.52

Finding the Fourth Proportional to 279,086,393.56, 418,597,700.10 and 74,630,418.52

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Solution

The fourth proportional to 279,086,393.56, 418,597,700.10 and 74,630,418.52 is: 111,937,100.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,086,393.56 : 418,597,700.10 = 74,630,418.52 : x
  2. Step 2: Convert to fraction form
    279,086,393.56/418,597,700.10 = 74,630,418.52/x
  3. Step 3: Cross multiply
    279,086,393.56x = 418,597,700.10 × 74,630,418.52
  4. Step 4: Simplify right side
    279,086,393.56x = 31,240,121,549,972,444
  5. Step 5: Solve for x
    x = 31,240,121,549,972,444/279,086,393.56
  6. Step 6: Final answer
    x = 111,937,100.02

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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.