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Finding the Fourth Proportional to 290,424,674.80, 435,469,050.60 and 108,690,223.60

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Solution

The fourth proportional to 290,424,674.80, 435,469,050.60 and 108,690,223.60 is: 162,972,476.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,424,674.80 : 435,469,050.60 = 108,690,223.60 : x
  2. Step 2: Convert to fraction form
    290,424,674.80/435,469,050.60 = 108,690,223.60/x
  3. Step 3: Cross multiply
    290,424,674.80x = 435,469,050.60 × 108,690,223.60
  4. Step 4: Simplify right side
    290,424,674.80x = 47,331,228,480,593,712
  5. Step 5: Solve for x
    x = 47,331,228,480,593,712/290,424,674.80
  6. Step 6: Final answer
    x = 162,972,476.47

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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.