Home / 7,420,688.28-11,143,670.58-4,831,400.61

Finding the Fourth Proportional to 7,420,688.28, 11,143,670.58 and 4,831,400.61

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Solution

The fourth proportional to 7,420,688.28, 11,143,670.58 and 4,831,400.61 is: 7,255,329.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420,688.28 : 11,143,670.58 = 4,831,400.61 : x
  2. Step 2: Convert to fraction form
    7,420,688.28/11,143,670.58 = 4,831,400.61/x
  3. Step 3: Cross multiply
    7,420,688.28x = 11,143,670.58 × 4,831,400.61
  4. Step 4: Simplify right side
    7,420,688.28x = 53,839,536,837,851.05
  5. Step 5: Solve for x
    x = 53,839,536,837,851.05/7,420,688.28
  6. Step 6: Final answer
    x = 7,255,329.26

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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.