Home / 69,943,876.40-104,923,687.80-21,421,344.80

Finding the Fourth Proportional to 69,943,876.40, 104,923,687.80 and 21,421,344.80

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Solution

The fourth proportional to 69,943,876.40, 104,923,687.80 and 21,421,344.80 is: 32,134,428.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,943,876.40 : 104,923,687.80 = 21,421,344.80 : x
  2. Step 2: Convert to fraction form
    69,943,876.40/104,923,687.80 = 21,421,344.80/x
  3. Step 3: Cross multiply
    69,943,876.40x = 104,923,687.80 × 21,421,344.80
  4. Step 4: Simplify right side
    69,943,876.40x = 2,247,606,494,051,353.50
  5. Step 5: Solve for x
    x = 2,247,606,494,051,353.50/69,943,876.40
  6. Step 6: Final answer
    x = 32,134,428.48

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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.