Home / 56,977,169.25-78,628,383.68-30,872,393.67

Finding the Fourth Proportional to 56,977,169.25, 78,628,383.68 and 30,872,393.67

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Solution

The fourth proportional to 56,977,169.25, 78,628,383.68 and 30,872,393.67 is: 42,603,843.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,977,169.25 : 78,628,383.68 = 30,872,393.67 : x
  2. Step 2: Convert to fraction form
    56,977,169.25/78,628,383.68 = 30,872,393.67/x
  3. Step 3: Cross multiply
    56,977,169.25x = 78,628,383.68 × 30,872,393.67
  4. Step 4: Simplify right side
    56,977,169.25x = 2,427,446,414,450,401.50
  5. Step 5: Solve for x
    x = 2,427,446,414,450,401.50/56,977,169.25
  6. Step 6: Final answer
    x = 42,603,843.72

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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.