Home / 378,584,430.30-567,876,645.45-313,961,204.70

Finding the Fourth Proportional to 378,584,430.30, 567,876,645.45 and 313,961,204.70

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Solution

The fourth proportional to 378,584,430.30, 567,876,645.45 and 313,961,204.70 is: 470,941,807.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,584,430.30 : 567,876,645.45 = 313,961,204.70 : x
  2. Step 2: Convert to fraction form
    378,584,430.30/567,876,645.45 = 313,961,204.70/x
  3. Step 3: Cross multiply
    378,584,430.30x = 567,876,645.45 × 313,961,204.70
  4. Step 4: Simplify right side
    378,584,430.30x = 178,291,235,726,476,768
  5. Step 5: Solve for x
    x = 178,291,235,726,476,768/378,584,430.30
  6. Step 6: Final answer
    x = 470,941,807.05

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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.