Home / 12,778,784.65-17,634,744.60-6,977,442.75

Finding the Fourth Proportional to 12,778,784.65, 17,634,744.60 and 6,977,442.75

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Solution

The fourth proportional to 12,778,784.65, 17,634,744.60 and 6,977,442.75 is: 9,628,882.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778,784.65 : 17,634,744.60 = 6,977,442.75 : x
  2. Step 2: Convert to fraction form
    12,778,784.65/17,634,744.60 = 6,977,442.75/x
  3. Step 3: Cross multiply
    12,778,784.65x = 17,634,744.60 × 6,977,442.75
  4. Step 4: Simplify right side
    12,778,784.65x = 123,045,420,857,371.66
  5. Step 5: Solve for x
    x = 123,045,420,857,371.66/12,778,784.65
  6. Step 6: Final answer
    x = 9,628,882.89

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1.5x scale

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.