Home / 8,622,546.90-12,919,823.55-5,421,945.30

Finding the Fourth Proportional to 8,622,546.90, 12,919,823.55 and 5,421,945.30

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Solution

The fourth proportional to 8,622,546.90, 12,919,823.55 and 5,421,945.30 is: 8,124,116.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622,546.90 : 12,919,823.55 = 5,421,945.30 : x
  2. Step 2: Convert to fraction form
    8,622,546.90/12,919,823.55 = 5,421,945.30/x
  3. Step 3: Cross multiply
    8,622,546.90x = 12,919,823.55 × 5,421,945.30
  4. Step 4: Simplify right side
    8,622,546.90x = 70,050,576,573,751.82
  5. Step 5: Solve for x
    x = 70,050,576,573,751.82/8,622,546.90
  6. Step 6: Final answer
    x = 8,124,116.62

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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.