Home / 828,211,650,111.22-1,242,441,692,360.70-290,894,905,554.42

Finding the Fourth Proportional to 828,211,650,111.22, 1,242,441,692,360.70 and 290,894,905,554.42

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Solution

The fourth proportional to 828,211,650,111.22, 1,242,441,692,360.70 and 290,894,905,554.42 is: 436,385,987,455.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,211,650,111.22 : 1,242,441,692,360.70 = 290,894,905,554.42 : x
  2. Step 2: Convert to fraction form
    828,211,650,111.22/1,242,441,692,360.70 = 290,894,905,554.42/x
  3. Step 3: Cross multiply
    828,211,650,111.22x = 1,242,441,692,360.70 × 290,894,905,554.42
  4. Step 4: Simplify right side
    828,211,650,111.22x = 361,419,958,756,139,543,298,048
  5. Step 5: Solve for x
    x = 361,419,958,756,139,543,298,048/828,211,650,111.22
  6. Step 6: Final answer
    x = 436,385,987,455.75

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Double scale
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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.