Home / 143,820,673.33-198,472,443.56-77,741,172.47

Finding the Fourth Proportional to 143,820,673.33, 198,472,443.56 and 77,741,172.47

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Solution

The fourth proportional to 143,820,673.33, 198,472,443.56 and 77,741,172.47 is: 107,282,771.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,820,673.33 : 198,472,443.56 = 77,741,172.47 : x
  2. Step 2: Convert to fraction form
    143,820,673.33/198,472,443.56 = 77,741,172.47/x
  3. Step 3: Cross multiply
    143,820,673.33x = 198,472,443.56 × 77,741,172.47
  4. Step 4: Simplify right side
    143,820,673.33x = 15,429,480,466,030,834
  5. Step 5: Solve for x
    x = 15,429,480,466,030,834/143,820,673.33
  6. Step 6: Final answer
    x = 107,282,771.72

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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.