Home / 8,124,441.54-11,205,191.89-7,142,280.57

Finding the Fourth Proportional to 8,124,441.54, 11,205,191.89 and 7,142,280.57

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Solution

The fourth proportional to 8,124,441.54, 11,205,191.89 and 7,142,280.57 is: 9,850,600.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124,441.54 : 11,205,191.89 = 7,142,280.57 : x
  2. Step 2: Convert to fraction form
    8,124,441.54/11,205,191.89 = 7,142,280.57/x
  3. Step 3: Cross multiply
    8,124,441.54x = 11,205,191.89 × 7,142,280.57
  4. Step 4: Simplify right side
    8,124,441.54x = 80,030,624,263,042.62
  5. Step 5: Solve for x
    x = 80,030,624,263,042.62/8,124,441.54
  6. Step 6: Final answer
    x = 9,850,600.06

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1.5x scale

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.