Home / 15,218,427.38-21,000,866.95-8,248,955.29

Finding the Fourth Proportional to 15,218,427.38, 21,000,866.95 and 8,248,955.29

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Solution

The fourth proportional to 15,218,427.38, 21,000,866.95 and 8,248,955.29 is: 11,383,253.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218,427.38 : 21,000,866.95 = 8,248,955.29 : x
  2. Step 2: Convert to fraction form
    15,218,427.38/21,000,866.95 = 8,248,955.29/x
  3. Step 3: Cross multiply
    15,218,427.38x = 21,000,866.95 × 8,248,955.29
  4. Step 4: Simplify right side
    15,218,427.38x = 173,235,212,556,594.06
  5. Step 5: Solve for x
    x = 173,235,212,556,594.06/15,218,427.38
  6. Step 6: Final answer
    x = 11,383,253.22

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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.