Home / 7,128,766.40-10,692,112.80-2,079,550.40

Finding the Fourth Proportional to 7,128,766.40, 10,692,112.80 and 2,079,550.40

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Solution

The fourth proportional to 7,128,766.40, 10,692,112.80 and 2,079,550.40 is: 3,119,023.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,766.40 : 10,692,112.80 = 2,079,550.40 : x
  2. Step 2: Convert to fraction form
    7,128,766.40/10,692,112.80 = 2,079,550.40/x
  3. Step 3: Cross multiply
    7,128,766.40x = 10,692,112.80 × 2,079,550.40
  4. Step 4: Simplify right side
    7,128,766.40x = 22,234,787,450,085.12
  5. Step 5: Solve for x
    x = 22,234,787,450,085.12/7,128,766.40
  6. Step 6: Final answer
    x = 3,119,023.15

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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.