Home / 412,159,182.81-618,235,624.89-105,450,803.61

Finding the Fourth Proportional to 412,159,182.81, 618,235,624.89 and 105,450,803.61

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Solution

The fourth proportional to 412,159,182.81, 618,235,624.89 and 105,450,803.61 is: 158,175,399.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,159,182.81 : 618,235,624.89 = 105,450,803.61 : x
  2. Step 2: Convert to fraction form
    412,159,182.81/618,235,624.89 = 105,450,803.61/x
  3. Step 3: Cross multiply
    412,159,182.81x = 618,235,624.89 × 105,450,803.61
  4. Step 4: Simplify right side
    412,159,182.81x = 65,193,443,464,981,016
  5. Step 5: Solve for x
    x = 65,193,443,464,981,016/412,159,182.81
  6. Step 6: Final answer
    x = 158,175,399.66

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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.