Home / 78,634,760.16-108,491,921.28-45,588,413.28

Finding the Fourth Proportional to 78,634,760.16, 108,491,921.28 and 45,588,413.28

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Solution

The fourth proportional to 78,634,760.16, 108,491,921.28 and 45,588,413.28 is: 62,898,068.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,634,760.16 : 108,491,921.28 = 45,588,413.28 : x
  2. Step 2: Convert to fraction form
    78,634,760.16/108,491,921.28 = 45,588,413.28/x
  3. Step 3: Cross multiply
    78,634,760.16x = 108,491,921.28 × 45,588,413.28
  4. Step 4: Simplify right side
    78,634,760.16x = 4,945,974,544,853,867
  5. Step 5: Solve for x
    x = 4,945,974,544,853,867/78,634,760.16
  6. Step 6: Final answer
    x = 62,898,068.68

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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.