Home / 10,022,688.36-13,831,318.98-5,439,009.78

Finding the Fourth Proportional to 10,022,688.36, 13,831,318.98 and 5,439,009.78

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Solution

The fourth proportional to 10,022,688.36, 13,831,318.98 and 5,439,009.78 is: 7,505,838.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,022,688.36 : 13,831,318.98 = 5,439,009.78 : x
  2. Step 2: Convert to fraction form
    10,022,688.36/13,831,318.98 = 5,439,009.78/x
  3. Step 3: Cross multiply
    10,022,688.36x = 13,831,318.98 × 5,439,009.78
  4. Step 4: Simplify right side
    10,022,688.36x = 75,228,679,202,519.62
  5. Step 5: Solve for x
    x = 75,228,679,202,519.62/10,022,688.36
  6. Step 6: Final answer
    x = 7,505,838.40

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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.