Home / 12,115,419.40-18,148,634.70-7,552,462.60

Finding the Fourth Proportional to 12,115,419.40, 18,148,634.70 and 7,552,462.60

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Solution

The fourth proportional to 12,115,419.40, 18,148,634.70 and 7,552,462.60 is: 11,313,424.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115,419.40 : 18,148,634.70 = 7,552,462.60 : x
  2. Step 2: Convert to fraction form
    12,115,419.40/18,148,634.70 = 7,552,462.60/x
  3. Step 3: Cross multiply
    12,115,419.40x = 18,148,634.70 × 7,552,462.60
  4. Step 4: Simplify right side
    12,115,419.40x = 137,066,884,812,812.20
  5. Step 5: Solve for x
    x = 137,066,884,812,812.20/12,115,419.40
  6. Step 6: Final answer
    x = 11,313,424.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.