Home / 149,120,466,654.96-205,786,236,113.82-80,531,873,169.48

Finding the Fourth Proportional to 149,120,466,654.96, 205,786,236,113.82 and 80,531,873,169.48

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Solution

The fourth proportional to 149,120,466,654.96, 205,786,236,113.82 and 80,531,873,169.48 is: 111,133,980,723.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,120,466,654.96 : 205,786,236,113.82 = 80,531,873,169.48 : x
  2. Step 2: Convert to fraction form
    149,120,466,654.96/205,786,236,113.82 = 80,531,873,169.48/x
  3. Step 3: Cross multiply
    149,120,466,654.96x = 205,786,236,113.82 × 80,531,873,169.48
  4. Step 4: Simplify right side
    149,120,466,654.96x = 16,572,351,066,742,817,030,144
  5. Step 5: Solve for x
    x = 16,572,351,066,742,817,030,144/149,120,466,654.96
  6. Step 6: Final answer
    x = 111,133,980,723.71

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1.5x scale

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.