Home / 12,572,507.61-18,942,772.32-11,359,493.19

Finding the Fourth Proportional to 12,572,507.61, 18,942,772.32 and 11,359,493.19

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Solution

The fourth proportional to 12,572,507.61, 18,942,772.32 and 11,359,493.19 is: 17,115,145.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572,507.61 : 18,942,772.32 = 11,359,493.19 : x
  2. Step 2: Convert to fraction form
    12,572,507.61/18,942,772.32 = 11,359,493.19/x
  3. Step 3: Cross multiply
    12,572,507.61x = 18,942,772.32 × 11,359,493.19
  4. Step 4: Simplify right side
    12,572,507.61x = 215,180,293,168,760.50
  5. Step 5: Solve for x
    x = 215,180,293,168,760.50/12,572,507.61
  6. Step 6: Final answer
    x = 17,115,145.19

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.