Home / 15,316,639.46-21,136,691.38-8,347,381.24

Finding the Fourth Proportional to 15,316,639.46, 21,136,691.38 and 8,347,381.24

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Solution

The fourth proportional to 15,316,639.46, 21,136,691.38 and 8,347,381.24 is: 11,519,238.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316,639.46 : 21,136,691.38 = 8,347,381.24 : x
  2. Step 2: Convert to fraction form
    15,316,639.46/21,136,691.38 = 8,347,381.24/x
  3. Step 3: Cross multiply
    15,316,639.46x = 21,136,691.38 × 8,347,381.24
  4. Step 4: Simplify right side
    15,316,639.46x = 176,436,021,106,135.34
  5. Step 5: Solve for x
    x = 176,436,021,106,135.34/15,316,639.46
  6. Step 6: Final answer
    x = 11,519,238.38

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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.