Home / 13,627,139.64-18,806,583.18-7,827,040.68

Finding the Fourth Proportional to 13,627,139.64, 18,806,583.18 and 7,827,040.68

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Solution

The fourth proportional to 13,627,139.64, 18,806,583.18 and 7,827,040.68 is: 10,801,965.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,627,139.64 : 18,806,583.18 = 7,827,040.68 : x
  2. Step 2: Convert to fraction form
    13,627,139.64/18,806,583.18 = 7,827,040.68/x
  3. Step 3: Cross multiply
    13,627,139.64x = 18,806,583.18 × 7,827,040.68
  4. Step 4: Simplify right side
    13,627,139.64x = 147,199,891,601,663.75
  5. Step 5: Solve for x
    x = 147,199,891,601,663.75/13,627,139.64
  6. Step 6: Final answer
    x = 10,801,965.45

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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.