Home / 168,106,308.13-251,922,426-79,380,209.17

Finding the Fourth Proportional to 168,106,308.13, 251,922,426 and 79,380,209.17

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Solution

The fourth proportional to 168,106,308.13, 251,922,426 and 79,380,209.17 is: 118,958,384.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,106,308.13 : 251,922,426 = 79,380,209.17 : x
  2. Step 2: Convert to fraction form
    168,106,308.13/251,922,426 = 79,380,209.17/x
  3. Step 3: Cross multiply
    168,106,308.13x = 251,922,426 × 79,380,209.17
  4. Step 4: Simplify right side
    168,106,308.13x = 19,997,654,870,493,848
  5. Step 5: Solve for x
    x = 19,997,654,870,493,848/168,106,308.13
  6. Step 6: Final answer
    x = 118,958,384.68

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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.