Home / 213,109,129.60-319,534,246.72-83,561,532.16

Finding the Fourth Proportional to 213,109,129.60, 319,534,246.72 and 83,561,532.16

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Solution

The fourth proportional to 213,109,129.60, 319,534,246.72 and 83,561,532.16 is: 125,291,540.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,109,129.60 : 319,534,246.72 = 83,561,532.16 : x
  2. Step 2: Convert to fraction form
    213,109,129.60/319,534,246.72 = 83,561,532.16/x
  3. Step 3: Cross multiply
    213,109,129.60x = 319,534,246.72 × 83,561,532.16
  4. Step 4: Simplify right side
    213,109,129.60x = 26,700,771,233,514,656
  5. Step 5: Solve for x
    x = 26,700,771,233,514,656/213,109,129.60
  6. Step 6: Final answer
    x = 125,291,540.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.