Home / 69,164,947.80-103,747,421.70-21,295,891.80

Finding the Fourth Proportional to 69,164,947.80, 103,747,421.70 and 21,295,891.80

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Solution

The fourth proportional to 69,164,947.80, 103,747,421.70 and 21,295,891.80 is: 31,943,837.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,164,947.80 : 103,747,421.70 = 21,295,891.80 : x
  2. Step 2: Convert to fraction form
    69,164,947.80/103,747,421.70 = 21,295,891.80/x
  3. Step 3: Cross multiply
    69,164,947.80x = 103,747,421.70 × 21,295,891.80
  4. Step 4: Simplify right side
    69,164,947.80x = 2,209,393,867,052,172.25
  5. Step 5: Solve for x
    x = 2,209,393,867,052,172.25/69,164,947.80
  6. Step 6: Final answer
    x = 31,943,837.70

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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.