Home / 12,977,511.12-19,477,967.19-6,917,290.38

Finding the Fourth Proportional to 12,977,511.12, 19,477,967.19 and 6,917,290.38

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Solution

The fourth proportional to 12,977,511.12, 19,477,967.19 and 6,917,290.38 is: 10,382,172.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,977,511.12 : 19,477,967.19 = 6,917,290.38 : x
  2. Step 2: Convert to fraction form
    12,977,511.12/19,477,967.19 = 6,917,290.38/x
  3. Step 3: Cross multiply
    12,977,511.12x = 19,477,967.19 × 6,917,290.38
  4. Step 4: Simplify right side
    12,977,511.12x = 134,734,755,065,342.64
  5. Step 5: Solve for x
    x = 134,734,755,065,342.64/12,977,511.12
  6. Step 6: Final answer
    x = 10,382,172.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.