Home / 91,212,067.50-137,036,370.43-58,486,752.67

Finding the Fourth Proportional to 91,212,067.50, 137,036,370.43 and 58,486,752.67

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Solution

The fourth proportional to 91,212,067.50, 137,036,370.43 and 58,486,752.67 is: 87,870,086.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,212,067.50 : 137,036,370.43 = 58,486,752.67 : x
  2. Step 2: Convert to fraction form
    91,212,067.50/137,036,370.43 = 58,486,752.67/x
  3. Step 3: Cross multiply
    91,212,067.50x = 137,036,370.43 × 58,486,752.67
  4. Step 4: Simplify right side
    91,212,067.50x = 8,014,812,304,133,912
  5. Step 5: Solve for x
    x = 8,014,812,304,133,912/91,212,067.50
  6. Step 6: Final answer
    x = 87,870,086.97

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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.