Home / 626,517,393.60-939,776,090.40-381,629,380.80

Finding the Fourth Proportional to 626,517,393.60, 939,776,090.40 and 381,629,380.80

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Solution

The fourth proportional to 626,517,393.60, 939,776,090.40 and 381,629,380.80 is: 572,444,071.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,517,393.60 : 939,776,090.40 = 381,629,380.80 : x
  2. Step 2: Convert to fraction form
    626,517,393.60/939,776,090.40 = 381,629,380.80/x
  3. Step 3: Cross multiply
    626,517,393.60x = 939,776,090.40 × 381,629,380.80
  4. Step 4: Simplify right side
    626,517,393.60x = 358,646,167,469,996,800
  5. Step 5: Solve for x
    x = 358,646,167,469,996,800/626,517,393.60
  6. Step 6: Final answer
    x = 572,444,071.20

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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.