Home / 398,894,742.72-598,531,605.12-276,261,779.52

Finding the Fourth Proportional to 398,894,742.72, 598,531,605.12 and 276,261,779.52

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Solution

The fourth proportional to 398,894,742.72, 598,531,605.12 and 276,261,779.52 is: 414,523,904.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,894,742.72 : 598,531,605.12 = 276,261,779.52 : x
  2. Step 2: Convert to fraction form
    398,894,742.72/598,531,605.12 = 276,261,779.52/x
  3. Step 3: Cross multiply
    398,894,742.72x = 598,531,605.12 × 276,261,779.52
  4. Step 4: Simplify right side
    398,894,742.72x = 165,351,406,329,413,120
  5. Step 5: Solve for x
    x = 165,351,406,329,413,120/398,894,742.72
  6. Step 6: Final answer
    x = 414,523,904.73

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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.