Home / 7,889,828.80-11,826,578.40-4,287,985.60

Finding the Fourth Proportional to 7,889,828.80, 11,826,578.40 and 4,287,985.60

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Solution

The fourth proportional to 7,889,828.80, 11,826,578.40 and 4,287,985.60 is: 6,427,540.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889,828.80 : 11,826,578.40 = 4,287,985.60 : x
  2. Step 2: Convert to fraction form
    7,889,828.80/11,826,578.40 = 4,287,985.60/x
  3. Step 3: Cross multiply
    7,889,828.80x = 11,826,578.40 × 4,287,985.60
  4. Step 4: Simplify right side
    7,889,828.80x = 50,712,197,876,471.04
  5. Step 5: Solve for x
    x = 50,712,197,876,471.04/7,889,828.80
  6. Step 6: Final answer
    x = 6,427,540.97

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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.