Home / 13,685,082.56-18,884,645.45-7,490,116.65

Finding the Fourth Proportional to 13,685,082.56, 18,884,645.45 and 7,490,116.65

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Solution

The fourth proportional to 13,685,082.56, 18,884,645.45 and 7,490,116.65 is: 10,335,940.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,685,082.56 : 18,884,645.45 = 7,490,116.65 : x
  2. Step 2: Convert to fraction form
    13,685,082.56/18,884,645.45 = 7,490,116.65/x
  3. Step 3: Cross multiply
    13,685,082.56x = 18,884,645.45 × 7,490,116.65
  4. Step 4: Simplify right side
    13,685,082.56x = 141,448,197,301,663.75
  5. Step 5: Solve for x
    x = 141,448,197,301,663.75/13,685,082.56
  6. Step 6: Final answer
    x = 10,335,940.37

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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.