Home / 421,800,612.27-632,703,020.35-172,941,800.96

Finding the Fourth Proportional to 421,800,612.27, 632,703,020.35 and 172,941,800.96

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Solution

The fourth proportional to 421,800,612.27, 632,703,020.35 and 172,941,800.96 is: 259,413,563.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,800,612.27 : 632,703,020.35 = 172,941,800.96 : x
  2. Step 2: Convert to fraction form
    421,800,612.27/632,703,020.35 = 172,941,800.96/x
  3. Step 3: Cross multiply
    421,800,612.27x = 632,703,020.35 × 172,941,800.96
  4. Step 4: Simplify right side
    421,800,612.27x = 109,420,799,813,638,528
  5. Step 5: Solve for x
    x = 109,420,799,813,638,528/421,800,612.27
  6. Step 6: Final answer
    x = 259,413,563.26

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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.