Home / 21,178,916.56-29,225,677.01-11,885,618.87

Finding the Fourth Proportional to 21,178,916.56, 29,225,677.01 and 11,885,618.87

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Solution

The fourth proportional to 21,178,916.56, 29,225,677.01 and 11,885,618.87 is: 16,401,464.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,178,916.56 : 29,225,677.01 = 11,885,618.87 : x
  2. Step 2: Convert to fraction form
    21,178,916.56/29,225,677.01 = 11,885,618.87/x
  3. Step 3: Cross multiply
    21,178,916.56x = 29,225,677.01 × 11,885,618.87
  4. Step 4: Simplify right side
    21,178,916.56x = 347,365,258,005,155.88
  5. Step 5: Solve for x
    x = 347,365,258,005,155.88/21,178,916.56
  6. Step 6: Final answer
    x = 16,401,464.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.