Home / 18,374,477.10-27,561,715.65-12,894,729.90

Finding the Fourth Proportional to 18,374,477.10, 27,561,715.65 and 12,894,729.90

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Solution

The fourth proportional to 18,374,477.10, 27,561,715.65 and 12,894,729.90 is: 19,342,094.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,374,477.10 : 27,561,715.65 = 12,894,729.90 : x
  2. Step 2: Convert to fraction form
    18,374,477.10/27,561,715.65 = 12,894,729.90/x
  3. Step 3: Cross multiply
    18,374,477.10x = 27,561,715.65 × 12,894,729.90
  4. Step 4: Simplify right side
    18,374,477.10x = 355,400,878,887,352.94
  5. Step 5: Solve for x
    x = 355,400,878,887,352.94/18,374,477.10
  6. Step 6: Final answer
    x = 19,342,094.85

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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.