Home / 8,551,319.80-12,826,979.70-7,779,940.60

Finding the Fourth Proportional to 8,551,319.80, 12,826,979.70 and 7,779,940.60

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Solution

The fourth proportional to 8,551,319.80, 12,826,979.70 and 7,779,940.60 is: 11,669,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,551,319.80 : 12,826,979.70 = 7,779,940.60 : x
  2. Step 2: Convert to fraction form
    8,551,319.80/12,826,979.70 = 7,779,940.60/x
  3. Step 3: Cross multiply
    8,551,319.80x = 12,826,979.70 × 7,779,940.60
  4. Step 4: Simplify right side
    8,551,319.80x = 99,793,140,143,405.81
  5. Step 5: Solve for x
    x = 99,793,140,143,405.81/8,551,319.80
  6. Step 6: Final answer
    x = 11,669,910.90

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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.