Home / 85,993,023.75-129,045,028.94-31,401,038.63

Finding the Fourth Proportional to 85,993,023.75, 129,045,028.94 and 31,401,038.63

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Solution

The fourth proportional to 85,993,023.75, 129,045,028.94 and 31,401,038.63 is: 47,121,821.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,993,023.75 : 129,045,028.94 = 31,401,038.63 : x
  2. Step 2: Convert to fraction form
    85,993,023.75/129,045,028.94 = 31,401,038.63/x
  3. Step 3: Cross multiply
    85,993,023.75x = 129,045,028.94 × 31,401,038.63
  4. Step 4: Simplify right side
    85,993,023.75x = 4,052,147,937,952,177.50
  5. Step 5: Solve for x
    x = 4,052,147,937,952,177.50/85,993,023.75
  6. Step 6: Final answer
    x = 47,121,821.76

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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.