Home / 347,328,009.40-520,992,014.10-218,081,558.20

Finding the Fourth Proportional to 347,328,009.40, 520,992,014.10 and 218,081,558.20

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Solution

The fourth proportional to 347,328,009.40, 520,992,014.10 and 218,081,558.20 is: 327,122,337.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,328,009.40 : 520,992,014.10 = 218,081,558.20 : x
  2. Step 2: Convert to fraction form
    347,328,009.40/520,992,014.10 = 218,081,558.20/x
  3. Step 3: Cross multiply
    347,328,009.40x = 520,992,014.10 × 218,081,558.20
  4. Step 4: Simplify right side
    347,328,009.40x = 113,618,750,244,684,368
  5. Step 5: Solve for x
    x = 113,618,750,244,684,368/347,328,009.40
  6. Step 6: Final answer
    x = 327,122,337.30

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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.