Home / 12,590,561.60-18,876,511.20-5,396,206.40

Finding the Fourth Proportional to 12,590,561.60, 18,876,511.20 and 5,396,206.40

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Solution

The fourth proportional to 12,590,561.60, 18,876,511.20 and 5,396,206.40 is: 8,090,310.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590,561.60 : 18,876,511.20 = 5,396,206.40 : x
  2. Step 2: Convert to fraction form
    12,590,561.60/18,876,511.20 = 5,396,206.40/x
  3. Step 3: Cross multiply
    12,590,561.60x = 18,876,511.20 × 5,396,206.40
  4. Step 4: Simplify right side
    12,590,561.60x = 101,861,550,547,111.69
  5. Step 5: Solve for x
    x = 101,861,550,547,111.69/12,590,561.60
  6. Step 6: Final answer
    x = 8,090,310.33

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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.