Home / 86,290,355.45-119,079,904.43-47,132,121.83

Finding the Fourth Proportional to 86,290,355.45, 119,079,904.43 and 47,132,121.83

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Solution

The fourth proportional to 86,290,355.45, 119,079,904.43 and 47,132,121.83 is: 65,041,898.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,290,355.45 : 119,079,904.43 = 47,132,121.83 : x
  2. Step 2: Convert to fraction form
    86,290,355.45/119,079,904.43 = 47,132,121.83/x
  3. Step 3: Cross multiply
    86,290,355.45x = 119,079,904.43 × 47,132,121.83
  4. Step 4: Simplify right side
    86,290,355.45x = 5,612,488,562,621,948
  5. Step 5: Solve for x
    x = 5,612,488,562,621,948/86,290,355.45
  6. Step 6: Final answer
    x = 65,041,898.75

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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.