Home / 11,779,979.90-17,669,969.85-6,391,211.90

Finding the Fourth Proportional to 11,779,979.90, 17,669,969.85 and 6,391,211.90

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Solution

The fourth proportional to 11,779,979.90, 17,669,969.85 and 6,391,211.90 is: 9,586,817.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,779,979.90 : 17,669,969.85 = 6,391,211.90 : x
  2. Step 2: Convert to fraction form
    11,779,979.90/17,669,969.85 = 6,391,211.90/x
  3. Step 3: Cross multiply
    11,779,979.90x = 17,669,969.85 × 6,391,211.90
  4. Step 4: Simplify right side
    11,779,979.90x = 112,932,521,577,961.23
  5. Step 5: Solve for x
    x = 112,932,521,577,961.23/11,779,979.90
  6. Step 6: Final answer
    x = 9,586,817.85

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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.