Home / 87,216,451.85-120,363,988.37-48,058,181.21

Finding the Fourth Proportional to 87,216,451.85, 120,363,988.37 and 48,058,181.21

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Solution

The fourth proportional to 87,216,451.85, 120,363,988.37 and 48,058,181.21 is: 66,323,202.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,216,451.85 : 120,363,988.37 = 48,058,181.21 : x
  2. Step 2: Convert to fraction form
    87,216,451.85/120,363,988.37 = 48,058,181.21/x
  3. Step 3: Cross multiply
    87,216,451.85x = 120,363,988.37 × 48,058,181.21
  4. Step 4: Simplify right side
    87,216,451.85x = 5,784,474,363,401,681
  5. Step 5: Solve for x
    x = 5,784,474,363,401,681/87,216,451.85
  6. Step 6: Final answer
    x = 66,323,202.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.