Home / 144,083,923.12-198,834,385.26-78,002,673.22

Finding the Fourth Proportional to 144,083,923.12, 198,834,385.26 and 78,002,673.22

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Solution

The fourth proportional to 144,083,923.12, 198,834,385.26 and 78,002,673.22 is: 107,642,915.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,083,923.12 : 198,834,385.26 = 78,002,673.22 : x
  2. Step 2: Convert to fraction form
    144,083,923.12/198,834,385.26 = 78,002,673.22/x
  3. Step 3: Cross multiply
    144,083,923.12x = 198,834,385.26 × 78,002,673.22
  4. Step 4: Simplify right side
    144,083,923.12x = 15,509,613,578,335,364
  5. Step 5: Solve for x
    x = 15,509,613,578,335,364/144,083,923.12
  6. Step 6: Final answer
    x = 107,642,915.62

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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.