Home / 420,917,925.90-631,055,033.22-254,885,295.44

Finding the Fourth Proportional to 420,917,925.90, 631,055,033.22 and 254,885,295.44

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Solution

The fourth proportional to 420,917,925.90, 631,055,033.22 and 254,885,295.44 is: 382,133,044.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,917,925.90 : 631,055,033.22 = 254,885,295.44 : x
  2. Step 2: Convert to fraction form
    420,917,925.90/631,055,033.22 = 254,885,295.44/x
  3. Step 3: Cross multiply
    420,917,925.90x = 631,055,033.22 × 254,885,295.44
  4. Step 4: Simplify right side
    420,917,925.90x = 160,846,648,578,023,456
  5. Step 5: Solve for x
    x = 160,846,648,578,023,456/420,917,925.90
  6. Step 6: Final answer
    x = 382,133,044.66

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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.