Home / 18,971,988.98-28,453,724.28-8,727,009.35

Finding the Fourth Proportional to 18,971,988.98, 28,453,724.28 and 8,727,009.35

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Solution

The fourth proportional to 18,971,988.98, 28,453,724.28 and 8,727,009.35 is: 13,088,554.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971,988.98 : 28,453,724.28 = 8,727,009.35 : x
  2. Step 2: Convert to fraction form
    18,971,988.98/28,453,724.28 = 8,727,009.35/x
  3. Step 3: Cross multiply
    18,971,988.98x = 28,453,724.28 × 8,727,009.35
  4. Step 4: Simplify right side
    18,971,988.98x = 248,315,917,691,613.44
  5. Step 5: Solve for x
    x = 248,315,917,691,613.44/18,971,988.98
  6. Step 6: Final answer
    x = 13,088,554.82

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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.