Home / 165,168,722.01-247,753,069.34-78,644,812.80

Finding the Fourth Proportional to 165,168,722.01, 247,753,069.34 and 78,644,812.80

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Solution

The fourth proportional to 165,168,722.01, 247,753,069.34 and 78,644,812.80 is: 117,967,212.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,168,722.01 : 247,753,069.34 = 78,644,812.80 : x
  2. Step 2: Convert to fraction form
    165,168,722.01/247,753,069.34 = 78,644,812.80/x
  3. Step 3: Cross multiply
    165,168,722.01x = 247,753,069.34 × 78,644,812.80
  4. Step 4: Simplify right side
    165,168,722.01x = 19,484,493,758,476,496
  5. Step 5: Solve for x
    x = 19,484,493,758,476,496/165,168,722.01
  6. Step 6: Final answer
    x = 117,967,212.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.