Home / 12,778,785.65-17,634,745.98-6,977,443.75

Finding the Fourth Proportional to 12,778,785.65, 17,634,745.98 and 6,977,443.75

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Solution

The fourth proportional to 12,778,785.65, 17,634,745.98 and 6,977,443.75 is: 9,628,884.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778,785.65 : 17,634,745.98 = 6,977,443.75 : x
  2. Step 2: Convert to fraction form
    12,778,785.65/17,634,745.98 = 6,977,443.75/x
  3. Step 3: Cross multiply
    12,778,785.65x = 17,634,745.98 × 6,977,443.75
  4. Step 4: Simplify right side
    12,778,785.65x = 123,045,448,120,988.62
  5. Step 5: Solve for x
    x = 123,045,448,120,988.62/12,778,785.65
  6. Step 6: Final answer
    x = 9,628,884.27

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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.