Home / 12,572,754.79-18,943,146.28-11,359,741.32

Finding the Fourth Proportional to 12,572,754.79, 18,943,146.28 and 11,359,741.32

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Solution

The fourth proportional to 12,572,754.79, 18,943,146.28 and 11,359,741.32 is: 17,115,520.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572,754.79 : 18,943,146.28 = 11,359,741.32 : x
  2. Step 2: Convert to fraction form
    12,572,754.79/18,943,146.28 = 11,359,741.32/x
  3. Step 3: Cross multiply
    12,572,754.79x = 18,943,146.28 × 11,359,741.32
  4. Step 4: Simplify right side
    12,572,754.79x = 215,189,241,527,720.31
  5. Step 5: Solve for x
    x = 215,189,241,527,720.31/12,572,754.79
  6. Step 6: Final answer
    x = 17,115,520.43

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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.