Home / 12,778,459.80-17,634,988.62-6,977,779.80

Finding the Fourth Proportional to 12,778,459.80, 17,634,988.62 and 6,977,779.80

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Solution

The fourth proportional to 12,778,459.80, 17,634,988.62 and 6,977,779.80 is: 9,629,726.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778,459.80 : 17,634,988.62 = 6,977,779.80 : x
  2. Step 2: Convert to fraction form
    12,778,459.80/17,634,988.62 = 6,977,779.80/x
  3. Step 3: Cross multiply
    12,778,459.80x = 17,634,988.62 × 6,977,779.80
  4. Step 4: Simplify right side
    12,778,459.80x = 123,053,067,365,865.88
  5. Step 5: Solve for x
    x = 123,053,067,365,865.88/12,778,459.80
  6. Step 6: Final answer
    x = 9,629,726.06

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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.