Home / 18,927,843.40-28,391,765.10-5,280,963.40

Finding the Fourth Proportional to 18,927,843.40, 28,391,765.10 and 5,280,963.40

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Solution

The fourth proportional to 18,927,843.40, 28,391,765.10 and 5,280,963.40 is: 7,921,445.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927,843.40 : 28,391,765.10 = 5,280,963.40 : x
  2. Step 2: Convert to fraction form
    18,927,843.40/28,391,765.10 = 5,280,963.40/x
  3. Step 3: Cross multiply
    18,927,843.40x = 28,391,765.10 × 5,280,963.40
  4. Step 4: Simplify right side
    18,927,843.40x = 149,935,872,354,497.34
  5. Step 5: Solve for x
    x = 149,935,872,354,497.34/18,927,843.40
  6. Step 6: Final answer
    x = 7,921,445.10

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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.