Home / 72,836,836.20-109,255,254.30-36,557,130.60

Finding the Fourth Proportional to 72,836,836.20, 109,255,254.30 and 36,557,130.60

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Solution

The fourth proportional to 72,836,836.20, 109,255,254.30 and 36,557,130.60 is: 54,835,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,836,836.20 : 109,255,254.30 = 36,557,130.60 : x
  2. Step 2: Convert to fraction form
    72,836,836.20/109,255,254.30 = 36,557,130.60/x
  3. Step 3: Cross multiply
    72,836,836.20x = 109,255,254.30 × 36,557,130.60
  4. Step 4: Simplify right side
    72,836,836.20x = 3,994,058,600,181,311.50
  5. Step 5: Solve for x
    x = 3,994,058,600,181,311.50/72,836,836.20
  6. Step 6: Final answer
    x = 54,835,695.90

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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.