Home / 12,778,889.12-17,634,796.76-6,977,629.66

Finding the Fourth Proportional to 12,778,889.12, 17,634,796.76 and 6,977,629.66

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Solution

The fourth proportional to 12,778,889.12, 17,634,796.76 and 6,977,629.66 is: 9,629,090.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778,889.12 : 17,634,796.76 = 6,977,629.66 : x
  2. Step 2: Convert to fraction form
    12,778,889.12/17,634,796.76 = 6,977,629.66/x
  3. Step 3: Cross multiply
    12,778,889.12x = 17,634,796.76 × 6,977,629.66
  4. Step 4: Simplify right side
    12,778,889.12x = 123,049,080,920,647.92
  5. Step 5: Solve for x
    x = 123,049,080,920,647.92/12,778,889.12
  6. Step 6: Final answer
    x = 9,629,090.59

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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.