Home / 20,631,464.32-28,459,562.56-12,883,056

Finding the Fourth Proportional to 20,631,464.32, 28,459,562.56 and 12,883,056

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Solution

The fourth proportional to 20,631,464.32, 28,459,562.56 and 12,883,056 is: 17,771,212.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,631,464.32 : 28,459,562.56 = 12,883,056 : x
  2. Step 2: Convert to fraction form
    20,631,464.32/28,459,562.56 = 12,883,056/x
  3. Step 3: Cross multiply
    20,631,464.32x = 28,459,562.56 × 12,883,056
  4. Step 4: Simplify right side
    20,631,464.32x = 366,646,138,195,983.31
  5. Step 5: Solve for x
    x = 366,646,138,195,983.31/20,631,464.32
  6. Step 6: Final answer
    x = 17,771,212.58

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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.