Home / 20,668,930.43-31,007,876.28-6,291,622.52

Finding the Fourth Proportional to 20,668,930.43, 31,007,876.28 and 6,291,622.52

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Solution

The fourth proportional to 20,668,930.43, 31,007,876.28 and 6,291,622.52 is: 9,438,797.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668,930.43 : 31,007,876.28 = 6,291,622.52 : x
  2. Step 2: Convert to fraction form
    20,668,930.43/31,007,876.28 = 6,291,622.52/x
  3. Step 3: Cross multiply
    20,668,930.43x = 31,007,876.28 × 6,291,622.52
  4. Step 4: Simplify right side
    20,668,930.43x = 195,089,852,700,621.81
  5. Step 5: Solve for x
    x = 195,089,852,700,621.81/20,668,930.43
  6. Step 6: Final answer
    x = 9,438,797.69

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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.