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Finding the Fourth Proportional to 15,842,479.04, 21,862,055.41 and 8,966,813.48

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Solution

The fourth proportional to 15,842,479.04, 21,862,055.41 and 8,966,813.48 is: 12,373,882.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,842,479.04 : 21,862,055.41 = 8,966,813.48 : x
  2. Step 2: Convert to fraction form
    15,842,479.04/21,862,055.41 = 8,966,813.48/x
  3. Step 3: Cross multiply
    15,842,479.04x = 21,862,055.41 × 8,966,813.48
  4. Step 4: Simplify right side
    15,842,479.04x = 196,032,973,019,167.59
  5. Step 5: Solve for x
    x = 196,032,973,019,167.59/15,842,479.04
  6. Step 6: Final answer
    x = 12,373,882.43

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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.