Home / 305,667,020.43-421,818,691.50-166,437,448.83

Finding the Fourth Proportional to 305,667,020.43, 421,818,691.50 and 166,437,448.83

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Solution

The fourth proportional to 305,667,020.43, 421,818,691.50 and 166,437,448.83 is: 229,682,701.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,667,020.43 : 421,818,691.50 = 166,437,448.83 : x
  2. Step 2: Convert to fraction form
    305,667,020.43/421,818,691.50 = 166,437,448.83/x
  3. Step 3: Cross multiply
    305,667,020.43x = 421,818,691.50 × 166,437,448.83
  4. Step 4: Simplify right side
    305,667,020.43x = 70,206,426,882,068,808
  5. Step 5: Solve for x
    x = 70,206,426,882,068,808/305,667,020.43
  6. Step 6: Final answer
    x = 229,682,701.08

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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.