Home / 144,692,305.60-217,290,400.80-76,667,857.60

Finding the Fourth Proportional to 144,692,305.60, 217,290,400.80 and 76,667,857.60

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Solution

The fourth proportional to 144,692,305.60, 217,290,400.80 and 76,667,857.60 is: 115,135,282.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,692,305.60 : 217,290,400.80 = 76,667,857.60 : x
  2. Step 2: Convert to fraction form
    144,692,305.60/217,290,400.80 = 76,667,857.60/x
  3. Step 3: Cross multiply
    144,692,305.60x = 217,290,400.80 × 76,667,857.60
  4. Step 4: Simplify right side
    144,692,305.60x = 16,659,189,506,381,326
  5. Step 5: Solve for x
    x = 16,659,189,506,381,326/144,692,305.60
  6. Step 6: Final answer
    x = 115,135,282.68

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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.