Home / 18,731,915.10-28,097,872.65-5,268,743.10

Finding the Fourth Proportional to 18,731,915.10, 28,097,872.65 and 5,268,743.10

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Solution

The fourth proportional to 18,731,915.10, 28,097,872.65 and 5,268,743.10 is: 7,903,114.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731,915.10 : 28,097,872.65 = 5,268,743.10 : x
  2. Step 2: Convert to fraction form
    18,731,915.10/28,097,872.65 = 5,268,743.10/x
  3. Step 3: Cross multiply
    18,731,915.10x = 28,097,872.65 × 5,268,743.10
  4. Step 4: Simplify right side
    18,731,915.10x = 148,040,472,649,366.19
  5. Step 5: Solve for x
    x = 148,040,472,649,366.19/18,731,915.10
  6. Step 6: Final answer
    x = 7,903,114.65

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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.