Home / 831,766,291.06-1,247,840,779.96-279,142,052.80

Finding the Fourth Proportional to 831,766,291.06, 1,247,840,779.96 and 279,142,052.80

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Solution

The fourth proportional to 831,766,291.06, 1,247,840,779.96 and 279,142,052.80 is: 418,777,294.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,766,291.06 : 1,247,840,779.96 = 279,142,052.80 : x
  2. Step 2: Convert to fraction form
    831,766,291.06/1,247,840,779.96 = 279,142,052.80/x
  3. Step 3: Cross multiply
    831,766,291.06x = 1,247,840,779.96 × 279,142,052.80
  4. Step 4: Simplify right side
    831,766,291.06x = 348,324,836,885,587,520
  5. Step 5: Solve for x
    x = 348,324,836,885,587,520/831,766,291.06
  6. Step 6: Final answer
    x = 418,777,294.33

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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.