Home / 489,642,005.10-734,463,007.65-126,136,361.10

Finding the Fourth Proportional to 489,642,005.10, 734,463,007.65 and 126,136,361.10

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Solution

The fourth proportional to 489,642,005.10, 734,463,007.65 and 126,136,361.10 is: 189,204,541.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,642,005.10 : 734,463,007.65 = 126,136,361.10 : x
  2. Step 2: Convert to fraction form
    489,642,005.10/734,463,007.65 = 126,136,361.10/x
  3. Step 3: Cross multiply
    489,642,005.10x = 734,463,007.65 × 126,136,361.10
  4. Step 4: Simplify right side
    489,642,005.10x = 92,642,491,147,532,448
  5. Step 5: Solve for x
    x = 92,642,491,147,532,448/489,642,005.10
  6. Step 6: Final answer
    x = 189,204,541.65

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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.