Home / 143,820,673.83-198,472,444.25-77,741,172.98

Finding the Fourth Proportional to 143,820,673.83, 198,472,444.25 and 77,741,172.98

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Solution

The fourth proportional to 143,820,673.83, 198,472,444.25 and 77,741,172.98 is: 107,282,772.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,820,673.83 : 198,472,444.25 = 77,741,172.98 : x
  2. Step 2: Convert to fraction form
    143,820,673.83/198,472,444.25 = 77,741,172.98/x
  3. Step 3: Cross multiply
    143,820,673.83x = 198,472,444.25 × 77,741,172.98
  4. Step 4: Simplify right side
    143,820,673.83x = 15,429,480,619,210,292
  5. Step 5: Solve for x
    x = 15,429,480,619,210,292/143,820,673.83
  6. Step 6: Final answer
    x = 107,282,772.42

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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.