Home / 144,769,926.85-199,783,918.63-78,690,384.33

Finding the Fourth Proportional to 144,769,926.85, 199,783,918.63 and 78,690,384.33

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Solution

The fourth proportional to 144,769,926.85, 199,783,918.63 and 78,690,384.33 is: 108,593,501.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,769,926.85 : 199,783,918.63 = 78,690,384.33 : x
  2. Step 2: Convert to fraction form
    144,769,926.85/199,783,918.63 = 78,690,384.33/x
  3. Step 3: Cross multiply
    144,769,926.85x = 199,783,918.63 × 78,690,384.33
  4. Step 4: Simplify right side
    144,769,926.85x = 15,721,073,339,297,320
  5. Step 5: Solve for x
    x = 15,721,073,339,297,320/144,769,926.85
  6. Step 6: Final answer
    x = 108,593,501.99

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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.