Home / 40,191,248.88-55,463,403.24-21,856,140.72

Finding the Fourth Proportional to 40,191,248.88, 55,463,403.24 and 21,856,140.72

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Solution

The fourth proportional to 40,191,248.88, 55,463,403.24 and 21,856,140.72 is: 30,161,191.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,191,248.88 : 55,463,403.24 = 21,856,140.72 : x
  2. Step 2: Convert to fraction form
    40,191,248.88/55,463,403.24 = 21,856,140.72/x
  3. Step 3: Cross multiply
    40,191,248.88x = 55,463,403.24 × 21,856,140.72
  4. Step 4: Simplify right side
    40,191,248.88x = 1,212,215,946,023,544
  5. Step 5: Solve for x
    x = 1,212,215,946,023,544/40,191,248.88
  6. Step 6: Final answer
    x = 30,161,191.30

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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.