Home / 347,328,016.40-520,992,024.60-218,081,565.20

Finding the Fourth Proportional to 347,328,016.40, 520,992,024.60 and 218,081,565.20

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Solution

The fourth proportional to 347,328,016.40, 520,992,024.60 and 218,081,565.20 is: 327,122,347.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,328,016.40 : 520,992,024.60 = 218,081,565.20 : x
  2. Step 2: Convert to fraction form
    347,328,016.40/520,992,024.60 = 218,081,565.20/x
  3. Step 3: Cross multiply
    347,328,016.40x = 520,992,024.60 × 218,081,565.20
  4. Step 4: Simplify right side
    347,328,016.40x = 113,618,756,181,484,896
  5. Step 5: Solve for x
    x = 113,618,756,181,484,896/347,328,016.40
  6. Step 6: Final answer
    x = 327,122,347.80

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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.