Home / 828,211,649,983.62-1,242,441,692,169.20-290,894,905,426.76

Finding the Fourth Proportional to 828,211,649,983.62, 1,242,441,692,169.20 and 290,894,905,426.76

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Solution

The fourth proportional to 828,211,649,983.62, 1,242,441,692,169.20 and 290,894,905,426.76 is: 436,385,987,264.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,211,649,983.62 : 1,242,441,692,169.20 = 290,894,905,426.76 : x
  2. Step 2: Convert to fraction form
    828,211,649,983.62/1,242,441,692,169.20 = 290,894,905,426.76/x
  3. Step 3: Cross multiply
    828,211,649,983.62x = 1,242,441,692,169.20 × 290,894,905,426.76
  4. Step 4: Simplify right side
    828,211,649,983.62x = 361,419,958,541,823,091,146,752
  5. Step 5: Solve for x
    x = 361,419,958,541,823,091,146,752/828,211,649,983.62
  6. Step 6: Final answer
    x = 436,385,987,264.21

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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.