Home / 12,778,459.92-17,634,988.56-6,977,779.92

Finding the Fourth Proportional to 12,778,459.92, 17,634,988.56 and 6,977,779.92

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Solution

The fourth proportional to 12,778,459.92, 17,634,988.56 and 6,977,779.92 is: 9,629,726.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778,459.92 : 17,634,988.56 = 6,977,779.92 : x
  2. Step 2: Convert to fraction form
    12,778,459.92/17,634,988.56 = 6,977,779.92/x
  3. Step 3: Cross multiply
    12,778,459.92x = 17,634,988.56 × 6,977,779.92
  4. Step 4: Simplify right side
    12,778,459.92x = 123,053,069,063,397.70
  5. Step 5: Solve for x
    x = 123,053,069,063,397.70/12,778,459.92
  6. Step 6: Final answer
    x = 9,629,726.10

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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.