Home / 356,039,486.40-534,059,229.60-218,289,979.20

Finding the Fourth Proportional to 356,039,486.40, 534,059,229.60 and 218,289,979.20

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Solution

The fourth proportional to 356,039,486.40, 534,059,229.60 and 218,289,979.20 is: 327,434,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,039,486.40 : 534,059,229.60 = 218,289,979.20 : x
  2. Step 2: Convert to fraction form
    356,039,486.40/534,059,229.60 = 218,289,979.20/x
  3. Step 3: Cross multiply
    356,039,486.40x = 534,059,229.60 × 218,289,979.20
  4. Step 4: Simplify right side
    356,039,486.40x = 116,579,778,120,952,016
  5. Step 5: Solve for x
    x = 116,579,778,120,952,016/356,039,486.40
  6. Step 6: Final answer
    x = 327,434,968.80

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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.