Home / 510,153,778.64-765,352,106.03-165,107,405.61

Finding the Fourth Proportional to 510,153,778.64, 765,352,106.03 and 165,107,405.61

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Solution

The fourth proportional to 510,153,778.64, 765,352,106.03 and 165,107,405.61 is: 247,700,410.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,153,778.64 : 765,352,106.03 = 165,107,405.61 : x
  2. Step 2: Convert to fraction form
    510,153,778.64/765,352,106.03 = 165,107,405.61/x
  3. Step 3: Cross multiply
    510,153,778.64x = 765,352,106.03 × 165,107,405.61
  4. Step 4: Simplify right side
    510,153,778.64x = 126,365,300,605,175,728
  5. Step 5: Solve for x
    x = 126,365,300,605,175,728/510,153,778.64
  6. Step 6: Final answer
    x = 247,700,410.93

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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.