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Finding the Fourth Proportional to 472,394,347.70, 708,591,521.55 and 414,998,719.70

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Solution

The fourth proportional to 472,394,347.70, 708,591,521.55 and 414,998,719.70 is: 622,498,079.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,394,347.70 : 708,591,521.55 = 414,998,719.70 : x
  2. Step 2: Convert to fraction form
    472,394,347.70/708,591,521.55 = 414,998,719.70/x
  3. Step 3: Cross multiply
    472,394,347.70x = 708,591,521.55 × 414,998,719.70
  4. Step 4: Simplify right side
    472,394,347.70x = 294,064,574,233,524,928
  5. Step 5: Solve for x
    x = 294,064,574,233,524,928/472,394,347.70
  6. Step 6: Final answer
    x = 622,498,079.55

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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.