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Finding the Fourth Proportional to 819,306,002.10, 1,228,959,003.15 and 819,306,002.10

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Solution

The fourth proportional to 819,306,002.10, 1,228,959,003.15 and 819,306,002.10 is: 1,228,959,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,306,002.10 : 1,228,959,003.15 = 819,306,002.10 : x
  2. Step 2: Convert to fraction form
    819,306,002.10/1,228,959,003.15 = 819,306,002.10/x
  3. Step 3: Cross multiply
    819,306,002.10x = 1,228,959,003.15 × 819,306,002.10
  4. Step 4: Simplify right side
    819,306,002.10x = 1,006,893,487,615,627,904
  5. Step 5: Solve for x
    x = 1,006,893,487,615,627,904/819,306,002.10
  6. Step 6: Final answer
    x = 1,228,959,003.15

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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.