Home / 828,211,649,985.62-1,242,441,692,172.20-290,894,905,428.74

Finding the Fourth Proportional to 828,211,649,985.62, 1,242,441,692,172.20 and 290,894,905,428.74

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Solution

The fourth proportional to 828,211,649,985.62, 1,242,441,692,172.20 and 290,894,905,428.74 is: 436,385,987,267.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,211,649,985.62 : 1,242,441,692,172.20 = 290,894,905,428.74 : x
  2. Step 2: Convert to fraction form
    828,211,649,985.62/1,242,441,692,172.20 = 290,894,905,428.74/x
  3. Step 3: Cross multiply
    828,211,649,985.62x = 1,242,441,692,172.20 × 290,894,905,428.74
  4. Step 4: Simplify right side
    828,211,649,985.62x = 361,419,958,545,155,784,441,856
  5. Step 5: Solve for x
    x = 361,419,958,545,155,784,441,856/828,211,649,985.62
  6. Step 6: Final answer
    x = 436,385,987,267.18

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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.