Home / 99,421,022-149,136,847.42-31,269,028.16

Finding the Fourth Proportional to 99,421,022, 149,136,847.42 and 31,269,028.16

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Solution

The fourth proportional to 99,421,022, 149,136,847.42 and 31,269,028.16 is: 46,905,213.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,421,022 : 149,136,847.42 = 31,269,028.16 : x
  2. Step 2: Convert to fraction form
    99,421,022/149,136,847.42 = 31,269,028.16/x
  3. Step 3: Cross multiply
    99,421,022x = 149,136,847.42 × 31,269,028.16
  4. Step 4: Simplify right side
    99,421,022x = 4,663,364,281,669,603
  5. Step 5: Solve for x
    x = 4,663,364,281,669,603/99,421,022
  6. Step 6: Final answer
    x = 46,905,213.68

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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.