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Finding the Fourth Proportional to 18,086,547.60, 27,129,821.40 and 15,651,104.40

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Solution

The fourth proportional to 18,086,547.60, 27,129,821.40 and 15,651,104.40 is: 23,476,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,086,547.60 : 27,129,821.40 = 15,651,104.40 : x
  2. Step 2: Convert to fraction form
    18,086,547.60/27,129,821.40 = 15,651,104.40/x
  3. Step 3: Cross multiply
    18,086,547.60x = 27,129,821.40 × 15,651,104.40
  4. Step 4: Simplify right side
    18,086,547.60x = 424,611,667,084,754.12
  5. Step 5: Solve for x
    x = 424,611,667,084,754.12/18,086,547.60
  6. Step 6: Final answer
    x = 23,476,656.60

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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.