Home / 143,661,274.80-198,252,558.63-77,581,769.37

Finding the Fourth Proportional to 143,661,274.80, 198,252,558.63 and 77,581,769.37

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Solution

The fourth proportional to 143,661,274.80, 198,252,558.63 and 77,581,769.37 is: 107,062,841.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,661,274.80 : 198,252,558.63 = 77,581,769.37 : x
  2. Step 2: Convert to fraction form
    143,661,274.80/198,252,558.63 = 77,581,769.37/x
  3. Step 3: Cross multiply
    143,661,274.80x = 198,252,558.63 × 77,581,769.37
  4. Step 4: Simplify right side
    143,661,274.80x = 15,380,784,280,645,064
  5. Step 5: Solve for x
    x = 15,380,784,280,645,064/143,661,274.80
  6. Step 6: Final answer
    x = 107,062,841.41

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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.