Home / 81,648,008.10-122,472,012.15-30,523,383.90

Finding the Fourth Proportional to 81,648,008.10, 122,472,012.15 and 30,523,383.90

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Solution

The fourth proportional to 81,648,008.10, 122,472,012.15 and 30,523,383.90 is: 45,785,075.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,648,008.10 : 122,472,012.15 = 30,523,383.90 : x
  2. Step 2: Convert to fraction form
    81,648,008.10/122,472,012.15 = 30,523,383.90/x
  3. Step 3: Cross multiply
    81,648,008.10x = 122,472,012.15 × 30,523,383.90
  4. Step 4: Simplify right side
    81,648,008.10x = 3,738,260,243,859,914.50
  5. Step 5: Solve for x
    x = 3,738,260,243,859,914.50/81,648,008.10
  6. Step 6: Final answer
    x = 45,785,075.85

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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.