Home / 21,652,902.21-29,877,207.30-12,356,227.65

Finding the Fourth Proportional to 21,652,902.21, 29,877,207.30 and 12,356,227.65

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Solution

The fourth proportional to 21,652,902.21, 29,877,207.30 and 12,356,227.65 is: 17,049,426.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,652,902.21 : 29,877,207.30 = 12,356,227.65 : x
  2. Step 2: Convert to fraction form
    21,652,902.21/29,877,207.30 = 12,356,227.65/x
  3. Step 3: Cross multiply
    21,652,902.21x = 29,877,207.30 × 12,356,227.65
  4. Step 4: Simplify right side
    21,652,902.21x = 369,169,574,945,041.88
  5. Step 5: Solve for x
    x = 369,169,574,945,041.88/21,652,902.21
  6. Step 6: Final answer
    x = 17,049,426.97

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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.