Home / 15,413,854.40-21,271,111.68-9,218,901

Finding the Fourth Proportional to 15,413,854.40, 21,271,111.68 and 9,218,901

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Solution

The fourth proportional to 15,413,854.40, 21,271,111.68 and 9,218,901 is: 12,722,078.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,413,854.40 : 21,271,111.68 = 9,218,901 : x
  2. Step 2: Convert to fraction form
    15,413,854.40/21,271,111.68 = 9,218,901/x
  3. Step 3: Cross multiply
    15,413,854.40x = 21,271,111.68 × 9,218,901
  4. Step 4: Simplify right side
    15,413,854.40x = 196,096,272,737,863.69
  5. Step 5: Solve for x
    x = 196,096,272,737,863.69/15,413,854.40
  6. Step 6: Final answer
    x = 12,722,078.96

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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.