Home / 828,211,649,990.12-1,242,441,692,179-290,894,905,433.28

Finding the Fourth Proportional to 828,211,649,990.12, 1,242,441,692,179 and 290,894,905,433.28

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Solution

The fourth proportional to 828,211,649,990.12, 1,242,441,692,179 and 290,894,905,433.28 is: 436,385,987,274.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,211,649,990.12 : 1,242,441,692,179 = 290,894,905,433.28 : x
  2. Step 2: Convert to fraction form
    828,211,649,990.12/1,242,441,692,179 = 290,894,905,433.28/x
  3. Step 3: Cross multiply
    828,211,649,990.12x = 1,242,441,692,179 × 290,894,905,433.28
  4. Step 4: Simplify right side
    828,211,649,990.12x = 361,419,958,552,774,653,771,776
  5. Step 5: Solve for x
    x = 361,419,958,552,774,653,771,776/828,211,649,990.12
  6. Step 6: Final answer
    x = 436,385,987,274.01

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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.