Home / 313,350,018.40-470,025,027.60-306,979,919.20

Finding the Fourth Proportional to 313,350,018.40, 470,025,027.60 and 306,979,919.20

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Solution

The fourth proportional to 313,350,018.40, 470,025,027.60 and 306,979,919.20 is: 460,469,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,350,018.40 : 470,025,027.60 = 306,979,919.20 : x
  2. Step 2: Convert to fraction form
    313,350,018.40/470,025,027.60 = 306,979,919.20/x
  3. Step 3: Cross multiply
    313,350,018.40x = 470,025,027.60 × 306,979,919.20
  4. Step 4: Simplify right side
    313,350,018.40x = 144,288,244,994,625,760
  5. Step 5: Solve for x
    x = 144,288,244,994,625,760/313,350,018.40
  6. Step 6: Final answer
    x = 460,469,878.80

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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.