Home / 21,581,489.70-32,372,234.55-18,684,152.10

Finding the Fourth Proportional to 21,581,489.70, 32,372,234.55 and 18,684,152.10

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Solution

The fourth proportional to 21,581,489.70, 32,372,234.55 and 18,684,152.10 is: 28,026,228.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581,489.70 : 32,372,234.55 = 18,684,152.10 : x
  2. Step 2: Convert to fraction form
    21,581,489.70/32,372,234.55 = 18,684,152.10/x
  3. Step 3: Cross multiply
    21,581,489.70x = 32,372,234.55 × 18,684,152.10
  4. Step 4: Simplify right side
    21,581,489.70x = 604,847,754,149,075.12
  5. Step 5: Solve for x
    x = 604,847,754,149,075.12/21,581,489.70
  6. Step 6: Final answer
    x = 28,026,228.15

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Double scale
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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.