Home / 680,323,604.22-938,345,285.88-513,066,905.91

Finding the Fourth Proportional to 680,323,604.22, 938,345,285.88 and 513,066,905.91

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Solution

The fourth proportional to 680,323,604.22, 938,345,285.88 and 513,066,905.91 is: 707,654,283.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,323,604.22 : 938,345,285.88 = 513,066,905.91 : x
  2. Step 2: Convert to fraction form
    680,323,604.22/938,345,285.88 = 513,066,905.91/x
  3. Step 3: Cross multiply
    680,323,604.22x = 938,345,285.88 × 513,066,905.91
  4. Step 4: Simplify right side
    680,323,604.22x = 481,433,912,501,686,016
  5. Step 5: Solve for x
    x = 481,433,912,501,686,016/680,323,604.22
  6. Step 6: Final answer
    x = 707,654,283.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.