Home / 56,319,940-77,721,517.20-30,565,828

Finding the Fourth Proportional to 56,319,940, 77,721,517.20 and 30,565,828

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Solution

The fourth proportional to 56,319,940, 77,721,517.20 and 30,565,828 is: 42,180,842.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,319,940 : 77,721,517.20 = 30,565,828 : x
  2. Step 2: Convert to fraction form
    56,319,940/77,721,517.20 = 30,565,828/x
  3. Step 3: Cross multiply
    56,319,940x = 77,721,517.20 × 30,565,828
  4. Step 4: Simplify right side
    56,319,940x = 2,375,622,526,634,241.50
  5. Step 5: Solve for x
    x = 2,375,622,526,634,241.50/56,319,940
  6. Step 6: Final answer
    x = 42,180,842.64

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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.