Home / 448,478,186.40-672,238,982.70-172,022,578.20

Finding the Fourth Proportional to 448,478,186.40, 672,238,982.70 and 172,022,578.20

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Solution

The fourth proportional to 448,478,186.40, 672,238,982.70 and 172,022,578.20 is: 257,850,407.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,478,186.40 : 672,238,982.70 = 172,022,578.20 : x
  2. Step 2: Convert to fraction form
    448,478,186.40/672,238,982.70 = 172,022,578.20/x
  3. Step 3: Cross multiply
    448,478,186.40x = 672,238,982.70 × 172,022,578.20
  4. Step 4: Simplify right side
    448,478,186.40x = 115,640,282,970,599,200
  5. Step 5: Solve for x
    x = 115,640,282,970,599,200/448,478,186.40
  6. Step 6: Final answer
    x = 257,850,407.17

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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.