Home / 13,656,428.39-18,845,648.26-7,461,341.78

Finding the Fourth Proportional to 13,656,428.39, 18,845,648.26 and 7,461,341.78

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Solution

The fourth proportional to 13,656,428.39, 18,845,648.26 and 7,461,341.78 is: 10,296,529.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656,428.39 : 18,845,648.26 = 7,461,341.78 : x
  2. Step 2: Convert to fraction form
    13,656,428.39/18,845,648.26 = 7,461,341.78/x
  3. Step 3: Cross multiply
    13,656,428.39x = 18,845,648.26 × 7,461,341.78
  4. Step 4: Simplify right side
    13,656,428.39x = 140,613,822,620,640.72
  5. Step 5: Solve for x
    x = 140,613,822,620,640.72/13,656,428.39
  6. Step 6: Final answer
    x = 10,296,529.85

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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.