Home / 21,180,916.96-31,767,312-8,227,053.28

Finding the Fourth Proportional to 21,180,916.96, 31,767,312 and 8,227,053.28

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Solution

The fourth proportional to 21,180,916.96, 31,767,312 and 8,227,053.28 is: 12,339,001.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,180,916.96 : 31,767,312 = 8,227,053.28 : x
  2. Step 2: Convert to fraction form
    21,180,916.96/31,767,312 = 8,227,053.28/x
  3. Step 3: Cross multiply
    21,180,916.96x = 31,767,312 × 8,227,053.28
  4. Step 4: Simplify right side
    21,180,916.96x = 261,351,368,386,383.38
  5. Step 5: Solve for x
    x = 261,351,368,386,383.38/21,180,916.96
  6. Step 6: Final answer
    x = 12,339,001.61

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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.