Home / 21,035,631.78-29,029,199.85-11,869,127.46

Finding the Fourth Proportional to 21,035,631.78, 29,029,199.85 and 11,869,127.46

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Solution

The fourth proportional to 21,035,631.78, 29,029,199.85 and 11,869,127.46 is: 16,379,411.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,035,631.78 : 29,029,199.85 = 11,869,127.46 : x
  2. Step 2: Convert to fraction form
    21,035,631.78/29,029,199.85 = 11,869,127.46/x
  3. Step 3: Cross multiply
    21,035,631.78x = 29,029,199.85 × 11,869,127.46
  4. Step 4: Simplify right side
    21,035,631.78x = 344,551,273,081,462.94
  5. Step 5: Solve for x
    x = 344,551,273,081,462.94/21,035,631.78
  6. Step 6: Final answer
    x = 16,379,411.69

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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.