Home / 15,495,691.57-21,335,378.73-13,167,673.81

Finding the Fourth Proportional to 15,495,691.57, 21,335,378.73 and 13,167,673.81

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Solution

The fourth proportional to 15,495,691.57, 21,335,378.73 and 13,167,673.81 is: 18,130,027.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,495,691.57 : 21,335,378.73 = 13,167,673.81 : x
  2. Step 2: Convert to fraction form
    15,495,691.57/21,335,378.73 = 13,167,673.81/x
  3. Step 3: Cross multiply
    15,495,691.57x = 21,335,378.73 × 13,167,673.81
  4. Step 4: Simplify right side
    15,495,691.57x = 280,937,307,729,452.09
  5. Step 5: Solve for x
    x = 280,937,307,729,452.09/15,495,691.57
  6. Step 6: Final answer
    x = 18,130,027.08

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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.