Home / 15,287,389.35-21,095,964.78-8,318,095.58

Finding the Fourth Proportional to 15,287,389.35, 21,095,964.78 and 8,318,095.58

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Solution

The fourth proportional to 15,287,389.35, 21,095,964.78 and 8,318,095.58 is: 11,478,627.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287,389.35 : 21,095,964.78 = 8,318,095.58 : x
  2. Step 2: Convert to fraction form
    15,287,389.35/21,095,964.78 = 8,318,095.58/x
  3. Step 3: Cross multiply
    15,287,389.35x = 21,095,964.78 × 8,318,095.58
  4. Step 4: Simplify right side
    15,287,389.35x = 175,478,251,286,873.88
  5. Step 5: Solve for x
    x = 175,478,251,286,873.88/15,287,389.35
  6. Step 6: Final answer
    x = 11,478,627.73

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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.