Home / 21,581,757.70-32,372,636.55-20,586,429.70

Finding the Fourth Proportional to 21,581,757.70, 32,372,636.55 and 20,586,429.70

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Solution

The fourth proportional to 21,581,757.70, 32,372,636.55 and 20,586,429.70 is: 30,879,644.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581,757.70 : 32,372,636.55 = 20,586,429.70 : x
  2. Step 2: Convert to fraction form
    21,581,757.70/32,372,636.55 = 20,586,429.70/x
  3. Step 3: Cross multiply
    21,581,757.70x = 32,372,636.55 × 20,586,429.70
  4. Step 4: Simplify right side
    21,581,757.70x = 666,437,006,540,225.50
  5. Step 5: Solve for x
    x = 666,437,006,540,225.50/21,581,757.70
  6. Step 6: Final answer
    x = 30,879,644.55

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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.