Home / 21,551,719.70-32,327,579.55-19,213,379.30

Finding the Fourth Proportional to 21,551,719.70, 32,327,579.55 and 19,213,379.30

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Solution

The fourth proportional to 21,551,719.70, 32,327,579.55 and 19,213,379.30 is: 28,820,068.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551,719.70 : 32,327,579.55 = 19,213,379.30 : x
  2. Step 2: Convert to fraction form
    21,551,719.70/32,327,579.55 = 19,213,379.30/x
  3. Step 3: Cross multiply
    21,551,719.70x = 32,327,579.55 × 19,213,379.30
  4. Step 4: Simplify right side
    21,551,719.70x = 621,122,047,745,073.38
  5. Step 5: Solve for x
    x = 621,122,047,745,073.38/21,551,719.70
  6. Step 6: Final answer
    x = 28,820,068.95

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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.