Home / 31,702,115.61-43,748,179.40-18,650,215.05

Finding the Fourth Proportional to 31,702,115.61, 43,748,179.40 and 18,650,215.05

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Solution

The fourth proportional to 31,702,115.61, 43,748,179.40 and 18,650,215.05 is: 25,736,861.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,702,115.61 : 43,748,179.40 = 18,650,215.05 : x
  2. Step 2: Convert to fraction form
    31,702,115.61/43,748,179.40 = 18,650,215.05/x
  3. Step 3: Cross multiply
    31,702,115.61x = 43,748,179.40 × 18,650,215.05
  4. Step 4: Simplify right side
    31,702,115.61x = 815,912,953,762,729
  5. Step 5: Solve for x
    x = 815,912,953,762,729/31,702,115.61
  6. Step 6: Final answer
    x = 25,736,861.34

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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.