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Finding the Fourth Proportional to 493,867,336.80, 740,801,005.20 and 310,201,327.20

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Solution

The fourth proportional to 493,867,336.80, 740,801,005.20 and 310,201,327.20 is: 465,301,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,867,336.80 : 740,801,005.20 = 310,201,327.20 : x
  2. Step 2: Convert to fraction form
    493,867,336.80/740,801,005.20 = 310,201,327.20/x
  3. Step 3: Cross multiply
    493,867,336.80x = 740,801,005.20 × 310,201,327.20
  4. Step 4: Simplify right side
    493,867,336.80x = 229,797,455,004,134,112
  5. Step 5: Solve for x
    x = 229,797,455,004,134,112/493,867,336.80
  6. Step 6: Final answer
    x = 465,301,990.80

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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.