Home / 8,612,487.78-12,921,258.09-2,547,379.50

Finding the Fourth Proportional to 8,612,487.78, 12,921,258.09 and 2,547,379.50

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Solution

The fourth proportional to 8,612,487.78, 12,921,258.09 and 2,547,379.50 is: 3,821,816.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,612,487.78 : 12,921,258.09 = 2,547,379.50 : x
  2. Step 2: Convert to fraction form
    8,612,487.78/12,921,258.09 = 2,547,379.50/x
  3. Step 3: Cross multiply
    8,612,487.78x = 12,921,258.09 × 2,547,379.50
  4. Step 4: Simplify right side
    8,612,487.78x = 32,915,347,972,675.16
  5. Step 5: Solve for x
    x = 32,915,347,972,675.16/8,612,487.78
  6. Step 6: Final answer
    x = 3,821,816.51

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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.