Home / 51,815,879.45-77,750,718.60-21,132,969.29

Finding the Fourth Proportional to 51,815,879.45, 77,750,718.60 and 21,132,969.29

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Solution

The fourth proportional to 51,815,879.45, 77,750,718.60 and 21,132,969.29 is: 31,710,424.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,815,879.45 : 77,750,718.60 = 21,132,969.29 : x
  2. Step 2: Convert to fraction form
    51,815,879.45/77,750,718.60 = 21,132,969.29/x
  3. Step 3: Cross multiply
    51,815,879.45x = 77,750,718.60 × 21,132,969.29
  4. Step 4: Simplify right side
    51,815,879.45x = 1,643,103,548,449,231.50
  5. Step 5: Solve for x
    x = 1,643,103,548,449,231.50/51,815,879.45
  6. Step 6: Final answer
    x = 31,710,424.79

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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.