Home / 14,645,969.36-20,212,631.88-8,121,644.24

Finding the Fourth Proportional to 14,645,969.36, 20,212,631.88 and 8,121,644.24

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Solution

The fourth proportional to 14,645,969.36, 20,212,631.88 and 8,121,644.24 is: 11,208,531.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,645,969.36 : 20,212,631.88 = 8,121,644.24 : x
  2. Step 2: Convert to fraction form
    14,645,969.36/20,212,631.88 = 8,121,644.24/x
  3. Step 3: Cross multiply
    14,645,969.36x = 20,212,631.88 × 8,121,644.24
  4. Step 4: Simplify right side
    14,645,969.36x = 164,159,805,283,442.38
  5. Step 5: Solve for x
    x = 164,159,805,283,442.38/14,645,969.36
  6. Step 6: Final answer
    x = 11,208,531.25

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Double scale
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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.