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Finding the Fourth Proportional to 268,275,615.70, 402,413,423.55 and 268,275,615.70

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Solution

The fourth proportional to 268,275,615.70, 402,413,423.55 and 268,275,615.70 is: 402,413,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,275,615.70 : 402,413,423.55 = 268,275,615.70 : x
  2. Step 2: Convert to fraction form
    268,275,615.70/402,413,423.55 = 268,275,615.70/x
  3. Step 3: Cross multiply
    268,275,615.70x = 402,413,423.55 × 268,275,615.70
  4. Step 4: Simplify right side
    268,275,615.70x = 107,957,708,968,821,136
  5. Step 5: Solve for x
    x = 107,957,708,968,821,136/268,275,615.70
  6. Step 6: Final answer
    x = 402,413,423.55

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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.