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Finding the Fourth Proportional to 608,970,868.70, 840,380,609.70 and 330,512,392.22

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Solution

The fourth proportional to 608,970,868.70, 840,380,609.70 and 330,512,392.22 is: 456,107,541.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,970,868.70 : 840,380,609.70 = 330,512,392.22 : x
  2. Step 2: Convert to fraction form
    608,970,868.70/840,380,609.70 = 330,512,392.22/x
  3. Step 3: Cross multiply
    608,970,868.70x = 840,380,609.70 × 330,512,392.22
  4. Step 4: Simplify right side
    608,970,868.70x = 277,756,205,687,249,184
  5. Step 5: Solve for x
    x = 277,756,205,687,249,184/608,970,868.70
  6. Step 6: Final answer
    x = 456,107,541.37

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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.