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Finding the Fourth Proportional to 18,208,472.70, 25,127,399.04 and 9,948,357.57

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Solution

The fourth proportional to 18,208,472.70, 25,127,399.04 and 9,948,357.57 is: 13,728,573.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,208,472.70 : 25,127,399.04 = 9,948,357.57 : x
  2. Step 2: Convert to fraction form
    18,208,472.70/25,127,399.04 = 9,948,357.57/x
  3. Step 3: Cross multiply
    18,208,472.70x = 25,127,399.04 × 9,948,357.57
  4. Step 4: Simplify right side
    18,208,472.70x = 249,976,350,453,994.72
  5. Step 5: Solve for x
    x = 249,976,350,453,994.72/18,208,472.70
  6. Step 6: Final answer
    x = 13,728,573.21

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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.