Home / 561,455,999.10-842,183,998.65-425,407,103.10

Finding the Fourth Proportional to 561,455,999.10, 842,183,998.65 and 425,407,103.10

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Solution

The fourth proportional to 561,455,999.10, 842,183,998.65 and 425,407,103.10 is: 638,110,654.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,455,999.10 : 842,183,998.65 = 425,407,103.10 : x
  2. Step 2: Convert to fraction form
    561,455,999.10/842,183,998.65 = 425,407,103.10/x
  3. Step 3: Cross multiply
    561,455,999.10x = 842,183,998.65 × 425,407,103.10
  4. Step 4: Simplify right side
    561,455,999.10x = 358,271,055,142,870,848
  5. Step 5: Solve for x
    x = 358,271,055,142,870,848/561,455,999.10
  6. Step 6: Final answer
    x = 638,110,654.65

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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.