Home / 172,631,110.30-258,521,512.65-81,648,411.10

Finding the Fourth Proportional to 172,631,110.30, 258,521,512.65 and 81,648,411.10

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Solution

The fourth proportional to 172,631,110.30, 258,521,512.65 and 81,648,411.10 is: 122,271,534.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,631,110.30 : 258,521,512.65 = 81,648,411.10 : x
  2. Step 2: Convert to fraction form
    172,631,110.30/258,521,512.65 = 81,648,411.10/x
  3. Step 3: Cross multiply
    172,631,110.30x = 258,521,512.65 × 81,648,411.10
  4. Step 4: Simplify right side
    172,631,110.30x = 21,107,870,743,041,048
  5. Step 5: Solve for x
    x = 21,107,870,743,041,048/172,631,110.30
  6. Step 6: Final answer
    x = 122,271,534.41

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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.