Home / 9,179,161,138.72-13,740,240,199.20-4,971,663,805.60

Finding the Fourth Proportional to 9,179,161,138.72, 13,740,240,199.20 and 4,971,663,805.60

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Solution

The fourth proportional to 9,179,161,138.72, 13,740,240,199.20 and 4,971,663,805.60 is: 7,442,058,576.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,179,161,138.72 : 13,740,240,199.20 = 4,971,663,805.60 : x
  2. Step 2: Convert to fraction form
    9,179,161,138.72/13,740,240,199.20 = 4,971,663,805.60/x
  3. Step 3: Cross multiply
    9,179,161,138.72x = 13,740,240,199.20 × 4,971,663,805.60
  4. Step 4: Simplify right side
    9,179,161,138.72x = 68,311,854,878,612,783,104
  5. Step 5: Solve for x
    x = 68,311,854,878,612,783,104/9,179,161,138.72
  6. Step 6: Final answer
    x = 7,442,058,576.62

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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.