Home / 31,251,478.22-43,122,950.10-18,021,143.79

Finding the Fourth Proportional to 31,251,478.22, 43,122,950.10 and 18,021,143.79

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Solution

The fourth proportional to 31,251,478.22, 43,122,950.10 and 18,021,143.79 is: 24,866,820.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,251,478.22 : 43,122,950.10 = 18,021,143.79 : x
  2. Step 2: Convert to fraction form
    31,251,478.22/43,122,950.10 = 18,021,143.79/x
  3. Step 3: Cross multiply
    31,251,478.22x = 43,122,950.10 × 18,021,143.79
  4. Step 4: Simplify right side
    31,251,478.22x = 777,124,884,401,094.88
  5. Step 5: Solve for x
    x = 777,124,884,401,094.88/31,251,478.22
  6. Step 6: Final answer
    x = 24,866,820.02

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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.