Home / 831,766,290.06-1,247,840,778.45-279,142,051.80

Finding the Fourth Proportional to 831,766,290.06, 1,247,840,778.45 and 279,142,051.80

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Solution

The fourth proportional to 831,766,290.06, 1,247,840,778.45 and 279,142,051.80 is: 418,777,292.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,766,290.06 : 1,247,840,778.45 = 279,142,051.80 : x
  2. Step 2: Convert to fraction form
    831,766,290.06/1,247,840,778.45 = 279,142,051.80/x
  3. Step 3: Cross multiply
    831,766,290.06x = 1,247,840,778.45 × 279,142,051.80
  4. Step 4: Simplify right side
    831,766,290.06x = 348,324,835,216,242,240
  5. Step 5: Solve for x
    x = 348,324,835,216,242,240/831,766,290.06
  6. Step 6: Final answer
    x = 418,777,292.83

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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.