Home / 28,263,947.20-42,395,920.80-8,066,564.80

Finding the Fourth Proportional to 28,263,947.20, 42,395,920.80 and 8,066,564.80

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Solution

The fourth proportional to 28,263,947.20, 42,395,920.80 and 8,066,564.80 is: 12,099,847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,263,947.20 : 42,395,920.80 = 8,066,564.80 : x
  2. Step 2: Convert to fraction form
    28,263,947.20/42,395,920.80 = 8,066,564.80/x
  3. Step 3: Cross multiply
    28,263,947.20x = 42,395,920.80 × 8,066,564.80
  4. Step 4: Simplify right side
    28,263,947.20x = 341,989,442,388,867.81
  5. Step 5: Solve for x
    x = 341,989,442,388,867.81/28,263,947.20
  6. Step 6: Final answer
    x = 12,099,847.20

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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.