Home / 7,086,043.09-9,779,050.79-3,988,766.31

Finding the Fourth Proportional to 7,086,043.09, 9,779,050.79 and 3,988,766.31

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Solution

The fourth proportional to 7,086,043.09, 9,779,050.79 and 3,988,766.31 is: 5,504,672.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,086,043.09 : 9,779,050.79 = 3,988,766.31 : x
  2. Step 2: Convert to fraction form
    7,086,043.09/9,779,050.79 = 3,988,766.31/x
  3. Step 3: Cross multiply
    7,086,043.09x = 9,779,050.79 × 3,988,766.31
  4. Step 4: Simplify right side
    7,086,043.09x = 39,006,348,334,930.88
  5. Step 5: Solve for x
    x = 39,006,348,334,930.88/7,086,043.09
  6. Step 6: Final answer
    x = 5,504,672.75

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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.