Home / 13,590,705.76-18,755,176.68-7,479,134.26

Finding the Fourth Proportional to 13,590,705.76, 18,755,176.68 and 7,479,134.26

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Solution

The fourth proportional to 13,590,705.76, 18,755,176.68 and 7,479,134.26 is: 10,321,206.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,705.76 : 18,755,176.68 = 7,479,134.26 : x
  2. Step 2: Convert to fraction form
    13,590,705.76/18,755,176.68 = 7,479,134.26/x
  3. Step 3: Cross multiply
    13,590,705.76x = 18,755,176.68 × 7,479,134.26
  4. Step 4: Simplify right side
    13,590,705.76x = 140,272,484,412,853.12
  5. Step 5: Solve for x
    x = 140,272,484,412,853.12/13,590,705.76
  6. Step 6: Final answer
    x = 10,321,206.78

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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.