Home / 760,786,925.76-1,140,383,910.43-318,383,078.61

Finding the Fourth Proportional to 760,786,925.76, 1,140,383,910.43 and 318,383,078.61

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Solution

The fourth proportional to 760,786,925.76, 1,140,383,910.43 and 318,383,078.61 is: 477,241,298.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,786,925.76 : 1,140,383,910.43 = 318,383,078.61 : x
  2. Step 2: Convert to fraction form
    760,786,925.76/1,140,383,910.43 = 318,383,078.61/x
  3. Step 3: Cross multiply
    760,786,925.76x = 1,140,383,910.43 × 318,383,078.61
  4. Step 4: Simplify right side
    760,786,925.76x = 363,078,940,200,013,952
  5. Step 5: Solve for x
    x = 363,078,940,200,013,952/760,786,925.76
  6. Step 6: Final answer
    x = 477,241,298.33

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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.