Home / 13,138,810.79-18,131,499.07-7,258,446.65

Finding the Fourth Proportional to 13,138,810.79, 18,131,499.07 and 7,258,446.65

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Solution

The fourth proportional to 13,138,810.79, 18,131,499.07 and 7,258,446.65 is: 10,016,623.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,138,810.79 : 18,131,499.07 = 7,258,446.65 : x
  2. Step 2: Convert to fraction form
    13,138,810.79/18,131,499.07 = 7,258,446.65/x
  3. Step 3: Cross multiply
    13,138,810.79x = 18,131,499.07 × 7,258,446.65
  4. Step 4: Simplify right side
    13,138,810.79x = 131,606,518,711,302.23
  5. Step 5: Solve for x
    x = 131,606,518,711,302.23/13,138,810.79
  6. Step 6: Final answer
    x = 10,016,623.33

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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.