Home / 21,581,761.70-32,372,642.55-20,586,433.70

Finding the Fourth Proportional to 21,581,761.70, 32,372,642.55 and 20,586,433.70

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Solution

The fourth proportional to 21,581,761.70, 32,372,642.55 and 20,586,433.70 is: 30,879,650.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581,761.70 : 32,372,642.55 = 20,586,433.70 : x
  2. Step 2: Convert to fraction form
    21,581,761.70/32,372,642.55 = 20,586,433.70/x
  3. Step 3: Cross multiply
    21,581,761.70x = 32,372,642.55 × 20,586,433.70
  4. Step 4: Simplify right side
    21,581,761.70x = 666,437,259,549,373.88
  5. Step 5: Solve for x
    x = 666,437,259,549,373.88/21,581,761.70
  6. Step 6: Final answer
    x = 30,879,650.55

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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.