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Finding the Fourth Proportional to 606,413,346.60, 909,620,019.90 and 218,248,840.20

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Solution

The fourth proportional to 606,413,346.60, 909,620,019.90 and 218,248,840.20 is: 327,373,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,413,346.60 : 909,620,019.90 = 218,248,840.20 : x
  2. Step 2: Convert to fraction form
    606,413,346.60/909,620,019.90 = 218,248,840.20/x
  3. Step 3: Cross multiply
    606,413,346.60x = 909,620,019.90 × 218,248,840.20
  4. Step 4: Simplify right side
    606,413,346.60x = 198,523,514,365,875,904
  5. Step 5: Solve for x
    x = 198,523,514,365,875,904/606,413,346.60
  6. Step 6: Final answer
    x = 327,373,260.30

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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.