Home / 151,514,783.16-209,090,310.66-81,900,165.12

Finding the Fourth Proportional to 151,514,783.16, 209,090,310.66 and 81,900,165.12

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Solution

The fourth proportional to 151,514,783.16, 209,090,310.66 and 81,900,165.12 is: 113,022,179.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,514,783.16 : 209,090,310.66 = 81,900,165.12 : x
  2. Step 2: Convert to fraction form
    151,514,783.16/209,090,310.66 = 81,900,165.12/x
  3. Step 3: Cross multiply
    151,514,783.16x = 209,090,310.66 × 81,900,165.12
  4. Step 4: Simplify right side
    151,514,783.16x = 17,124,530,968,046,096
  5. Step 5: Solve for x
    x = 17,124,530,968,046,096/151,514,783.16
  6. Step 6: Final answer
    x = 113,022,179.16

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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.