Home / 218,502,742.78-301,530,218.25-119,381,356.90

Finding the Fourth Proportional to 218,502,742.78, 301,530,218.25 and 119,381,356.90

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Solution

The fourth proportional to 218,502,742.78, 301,530,218.25 and 119,381,356.90 is: 164,744,323.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,502,742.78 : 301,530,218.25 = 119,381,356.90 : x
  2. Step 2: Convert to fraction form
    218,502,742.78/301,530,218.25 = 119,381,356.90/x
  3. Step 3: Cross multiply
    218,502,742.78x = 301,530,218.25 × 119,381,356.90
  4. Step 4: Simplify right side
    218,502,742.78x = 35,997,086,601,038,144
  5. Step 5: Solve for x
    x = 35,997,086,601,038,144/218,502,742.78
  6. Step 6: Final answer
    x = 164,744,323.77

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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.