Home / 281,225,605.94-421,898,642.67-87,132,723.38

Finding the Fourth Proportional to 281,225,605.94, 421,898,642.67 and 87,132,723.38

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Solution

The fourth proportional to 281,225,605.94, 421,898,642.67 and 87,132,723.38 is: 130,717,747.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,225,605.94 : 421,898,642.67 = 87,132,723.38 : x
  2. Step 2: Convert to fraction form
    281,225,605.94/421,898,642.67 = 87,132,723.38/x
  3. Step 3: Cross multiply
    281,225,605.94x = 421,898,642.67 × 87,132,723.38
  4. Step 4: Simplify right side
    281,225,605.94x = 36,761,177,726,162,576
  5. Step 5: Solve for x
    x = 36,761,177,726,162,576/281,225,605.94
  6. Step 6: Final answer
    x = 130,717,747.42

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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.