Home / 434,636,020.72-651,883,161.42-127,856,387.44

Finding the Fourth Proportional to 434,636,020.72, 651,883,161.42 and 127,856,387.44

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Solution

The fourth proportional to 434,636,020.72, 651,883,161.42 and 127,856,387.44 is: 191,763,733.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,636,020.72 : 651,883,161.42 = 127,856,387.44 : x
  2. Step 2: Convert to fraction form
    434,636,020.72/651,883,161.42 = 127,856,387.44/x
  3. Step 3: Cross multiply
    434,636,020.72x = 651,883,161.42 × 127,856,387.44
  4. Step 4: Simplify right side
    434,636,020.72x = 83,347,426,052,127,568
  5. Step 5: Solve for x
    x = 83,347,426,052,127,568/434,636,020.72
  6. Step 6: Final answer
    x = 191,763,733.51

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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.