Home / 77,985,625.73-107,623,526.79-43,178,316.65

Finding the Fourth Proportional to 77,985,625.73, 107,623,526.79 and 43,178,316.65

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Solution

The fourth proportional to 77,985,625.73, 107,623,526.79 and 43,178,316.65 is: 59,587,939.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,985,625.73 : 107,623,526.79 = 43,178,316.65 : x
  2. Step 2: Convert to fraction form
    77,985,625.73/107,623,526.79 = 43,178,316.65/x
  3. Step 3: Cross multiply
    77,985,625.73x = 107,623,526.79 × 43,178,316.65
  4. Step 4: Simplify right side
    77,985,625.73x = 4,647,002,718,728,378
  5. Step 5: Solve for x
    x = 4,647,002,718,728,378/77,985,625.73
  6. Step 6: Final answer
    x = 59,587,939.13

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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.