Home / 8,309,791.20-12,457,688.40-4,320,703.20

Finding the Fourth Proportional to 8,309,791.20, 12,457,688.40 and 4,320,703.20

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Solution

The fourth proportional to 8,309,791.20, 12,457,688.40 and 4,320,703.20 is: 6,477,415.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309,791.20 : 12,457,688.40 = 4,320,703.20 : x
  2. Step 2: Convert to fraction form
    8,309,791.20/12,457,688.40 = 4,320,703.20/x
  3. Step 3: Cross multiply
    8,309,791.20x = 12,457,688.40 × 4,320,703.20
  4. Step 4: Simplify right side
    8,309,791.20x = 53,825,974,134,482.88
  5. Step 5: Solve for x
    x = 53,825,974,134,482.88/8,309,791.20
  6. Step 6: Final answer
    x = 6,477,415.96

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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.