Home / 510,464,740.87-765,242,845.42-199,501,640.65

Finding the Fourth Proportional to 510,464,740.87, 765,242,845.42 and 199,501,640.65

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Solution

The fourth proportional to 510,464,740.87, 765,242,845.42 and 199,501,640.65 is: 299,074,923.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,464,740.87 : 765,242,845.42 = 199,501,640.65 : x
  2. Step 2: Convert to fraction form
    510,464,740.87/765,242,845.42 = 199,501,640.65/x
  3. Step 3: Cross multiply
    510,464,740.87x = 765,242,845.42 × 199,501,640.65
  4. Step 4: Simplify right side
    510,464,740.87x = 152,667,203,153,492,864
  5. Step 5: Solve for x
    x = 152,667,203,153,492,864/510,464,740.87
  6. Step 6: Final answer
    x = 299,074,923.17

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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.