Home / 140,110,570.40-193,364,538.73-78,242,861.12

Finding the Fourth Proportional to 140,110,570.40, 193,364,538.73 and 78,242,861.12

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Solution

The fourth proportional to 140,110,570.40, 193,364,538.73 and 78,242,861.12 is: 107,981,822.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,110,570.40 : 193,364,538.73 = 78,242,861.12 : x
  2. Step 2: Convert to fraction form
    140,110,570.40/193,364,538.73 = 78,242,861.12/x
  3. Step 3: Cross multiply
    140,110,570.40x = 193,364,538.73 × 78,242,861.12
  4. Step 4: Simplify right side
    140,110,570.40x = 15,129,394,748,221,820
  5. Step 5: Solve for x
    x = 15,129,394,748,221,820/140,110,570.40
  6. Step 6: Final answer
    x = 107,981,822.54

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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.