Home / 18,138,675.16-25,029,519.42-11,168,245.72

Finding the Fourth Proportional to 18,138,675.16, 25,029,519.42 and 11,168,245.72

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Solution

The fourth proportional to 18,138,675.16, 25,029,519.42 and 11,168,245.72 is: 15,411,038.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138,675.16 : 25,029,519.42 = 11,168,245.72 : x
  2. Step 2: Convert to fraction form
    18,138,675.16/25,029,519.42 = 11,168,245.72/x
  3. Step 3: Cross multiply
    18,138,675.16x = 25,029,519.42 × 11,168,245.72
  4. Step 4: Simplify right side
    18,138,675.16x = 279,535,823,136,071.91
  5. Step 5: Solve for x
    x = 279,535,823,136,071.91/18,138,675.16
  6. Step 6: Final answer
    x = 15,411,038.61

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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.