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Finding the Fourth Proportional to 18,668,340.40, 27,971,017.80 and 9,063,036.40

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Solution

The fourth proportional to 18,668,340.40, 27,971,017.80 and 9,063,036.40 is: 13,579,265.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668,340.40 : 27,971,017.80 = 9,063,036.40 : x
  2. Step 2: Convert to fraction form
    18,668,340.40/27,971,017.80 = 9,063,036.40/x
  3. Step 3: Cross multiply
    18,668,340.40x = 27,971,017.80 × 9,063,036.40
  4. Step 4: Simplify right side
    18,668,340.40x = 253,502,352,466,447.94
  5. Step 5: Solve for x
    x = 253,502,352,466,447.94/18,668,340.40
  6. Step 6: Final answer
    x = 13,579,265.59

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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.