Home / 808,534,987.35-1,115,781,645.50-437,257,018.73

Finding the Fourth Proportional to 808,534,987.35, 1,115,781,645.50 and 437,257,018.73

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Solution

The fourth proportional to 808,534,987.35, 1,115,781,645.50 and 437,257,018.73 is: 603,416,504.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,534,987.35 : 1,115,781,645.50 = 437,257,018.73 : x
  2. Step 2: Convert to fraction form
    808,534,987.35/1,115,781,645.50 = 437,257,018.73/x
  3. Step 3: Cross multiply
    808,534,987.35x = 1,115,781,645.50 × 437,257,018.73
  4. Step 4: Simplify right side
    808,534,987.35x = 487,883,355,857,218,496
  5. Step 5: Solve for x
    x = 487,883,355,857,218,496/808,534,987.35
  6. Step 6: Final answer
    x = 603,416,504.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.