Home / 77,985,851.40-107,623,837.44-43,178,540.76

Finding the Fourth Proportional to 77,985,851.40, 107,623,837.44 and 43,178,540.76

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Solution

The fourth proportional to 77,985,851.40, 107,623,837.44 and 43,178,540.76 is: 59,588,247.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,985,851.40 : 107,623,837.44 = 43,178,540.76 : x
  2. Step 2: Convert to fraction form
    77,985,851.40/107,623,837.44 = 43,178,540.76/x
  3. Step 3: Cross multiply
    77,985,851.40x = 107,623,837.44 × 43,178,540.76
  4. Step 4: Simplify right side
    77,985,851.40x = 4,647,040,251,650,654
  5. Step 5: Solve for x
    x = 4,647,040,251,650,654/77,985,851.40
  6. Step 6: Final answer
    x = 59,588,247.97

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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.