Home / 99,993,728-138,006,069.76-63,327,708.16

Finding the Fourth Proportional to 99,993,728, 138,006,069.76 and 63,327,708.16

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Solution

The fourth proportional to 99,993,728, 138,006,069.76 and 63,327,708.16 is: 87,401,562.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,993,728 : 138,006,069.76 = 63,327,708.16 : x
  2. Step 2: Convert to fraction form
    99,993,728/138,006,069.76 = 63,327,708.16/x
  3. Step 3: Cross multiply
    99,993,728x = 138,006,069.76 × 63,327,708.16
  4. Step 4: Simplify right side
    99,993,728x = 8,739,608,110,069,880
  5. Step 5: Solve for x
    x = 8,739,608,110,069,880/99,993,728
  6. Step 6: Final answer
    x = 87,401,562.93

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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.