Home / 21,581,667.20-32,372,500.80-20,586,339.20

Finding the Fourth Proportional to 21,581,667.20, 32,372,500.80 and 20,586,339.20

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Solution

The fourth proportional to 21,581,667.20, 32,372,500.80 and 20,586,339.20 is: 30,879,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581,667.20 : 32,372,500.80 = 20,586,339.20 : x
  2. Step 2: Convert to fraction form
    21,581,667.20/32,372,500.80 = 20,586,339.20/x
  3. Step 3: Cross multiply
    21,581,667.20x = 32,372,500.80 × 20,586,339.20
  4. Step 4: Simplify right side
    21,581,667.20x = 666,431,282,221,071.38
  5. Step 5: Solve for x
    x = 666,431,282,221,071.38/21,581,667.20
  6. Step 6: Final answer
    x = 30,879,508.80

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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.