Home / 15,715,278.81-21,685,912.38-8,838,432.27

Finding the Fourth Proportional to 15,715,278.81, 21,685,912.38 and 8,838,432.27

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Solution

The fourth proportional to 15,715,278.81, 21,685,912.38 and 8,838,432.27 is: 12,196,377.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,715,278.81 : 21,685,912.38 = 8,838,432.27 : x
  2. Step 2: Convert to fraction form
    15,715,278.81/21,685,912.38 = 8,838,432.27/x
  3. Step 3: Cross multiply
    15,715,278.81x = 21,685,912.38 × 8,838,432.27
  4. Step 4: Simplify right side
    15,715,278.81x = 191,669,467,739,592.34
  5. Step 5: Solve for x
    x = 191,669,467,739,592.34/15,715,278.81
  6. Step 6: Final answer
    x = 12,196,377.17

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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.