Home / 199,040,209.47-298,437,142.37-77,729,010.75

Finding the Fourth Proportional to 199,040,209.47, 298,437,142.37 and 77,729,010.75

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Solution

The fourth proportional to 199,040,209.47, 298,437,142.37 and 77,729,010.75 is: 116,545,415.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,040,209.47 : 298,437,142.37 = 77,729,010.75 : x
  2. Step 2: Convert to fraction form
    199,040,209.47/298,437,142.37 = 77,729,010.75/x
  3. Step 3: Cross multiply
    199,040,209.47x = 298,437,142.37 × 77,729,010.75
  4. Step 4: Simplify right side
    199,040,209.47x = 23,197,223,847,088,368
  5. Step 5: Solve for x
    x = 23,197,223,847,088,368/199,040,209.47
  6. Step 6: Final answer
    x = 116,545,415.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.