Home / 15,422,631.72-21,284,460.42-8,547,772.20

Finding the Fourth Proportional to 15,422,631.72, 21,284,460.42 and 8,547,772.20

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Solution

The fourth proportional to 15,422,631.72, 21,284,460.42 and 8,547,772.20 is: 11,796,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422,631.72 : 21,284,460.42 = 8,547,772.20 : x
  2. Step 2: Convert to fraction form
    15,422,631.72/21,284,460.42 = 8,547,772.20/x
  3. Step 3: Cross multiply
    15,422,631.72x = 21,284,460.42 × 8,547,772.20
  4. Step 4: Simplify right side
    15,422,631.72x = 181,934,719,070,076.31
  5. Step 5: Solve for x
    x = 181,934,719,070,076.31/15,422,631.72
  6. Step 6: Final answer
    x = 11,796,606.60

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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.