Home / 458,496,799.60-687,745,199.40-313,377,977.20

Finding the Fourth Proportional to 458,496,799.60, 687,745,199.40 and 313,377,977.20

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Solution

The fourth proportional to 458,496,799.60, 687,745,199.40 and 313,377,977.20 is: 470,066,965.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,496,799.60 : 687,745,199.40 = 313,377,977.20 : x
  2. Step 2: Convert to fraction form
    458,496,799.60/687,745,199.40 = 313,377,977.20/x
  3. Step 3: Cross multiply
    458,496,799.60x = 687,745,199.40 × 313,377,977.20
  4. Step 4: Simplify right side
    458,496,799.60x = 215,524,199,416,982,624
  5. Step 5: Solve for x
    x = 215,524,199,416,982,624/458,496,799.60
  6. Step 6: Final answer
    x = 470,066,965.80

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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.