Home / 19,320,840.10-28,948,082.55-12,585,787.30

Finding the Fourth Proportional to 19,320,840.10, 28,948,082.55 and 12,585,787.30

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Solution

The fourth proportional to 19,320,840.10, 28,948,082.55 and 12,585,787.30 is: 18,857,068.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320,840.10 : 28,948,082.55 = 12,585,787.30 : x
  2. Step 2: Convert to fraction form
    19,320,840.10/28,948,082.55 = 12,585,787.30/x
  3. Step 3: Cross multiply
    19,320,840.10x = 28,948,082.55 × 12,585,787.30
  4. Step 4: Simplify right side
    19,320,840.10x = 364,334,409,717,141.62
  5. Step 5: Solve for x
    x = 364,334,409,717,141.62/19,320,840.10
  6. Step 6: Final answer
    x = 18,857,068.73

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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.