Home / 13,590,695.15-18,755,161.93-7,479,123.65

Finding the Fourth Proportional to 13,590,695.15, 18,755,161.93 and 7,479,123.65

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Solution

The fourth proportional to 13,590,695.15, 18,755,161.93 and 7,479,123.65 is: 10,321,192.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,695.15 : 18,755,161.93 = 7,479,123.65 : x
  2. Step 2: Convert to fraction form
    13,590,695.15/18,755,161.93 = 7,479,123.65/x
  3. Step 3: Cross multiply
    13,590,695.15x = 18,755,161.93 × 7,479,123.65
  4. Step 4: Simplify right side
    13,590,695.15x = 140,272,175,019,071.22
  5. Step 5: Solve for x
    x = 140,272,175,019,071.22/13,590,695.15
  6. Step 6: Final answer
    x = 10,321,192.07

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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.