Home / 421,871,998.03-632,822,348.42-200,429,053.04

Finding the Fourth Proportional to 421,871,998.03, 632,822,348.42 and 200,429,053.04

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Solution

The fourth proportional to 421,871,998.03, 632,822,348.42 and 200,429,053.04 is: 300,650,397.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,871,998.03 : 632,822,348.42 = 200,429,053.04 : x
  2. Step 2: Convert to fraction form
    421,871,998.03/632,822,348.42 = 200,429,053.04/x
  3. Step 3: Cross multiply
    421,871,998.03x = 632,822,348.42 × 200,429,053.04
  4. Step 4: Simplify right side
    421,871,998.03x = 126,835,984,036,369,520
  5. Step 5: Solve for x
    x = 126,835,984,036,369,520/421,871,998.03
  6. Step 6: Final answer
    x = 300,650,397.82

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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.