Home / 379,103,999.40-568,655,999.10-317,881,996.20

Finding the Fourth Proportional to 379,103,999.40, 568,655,999.10 and 317,881,996.20

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Solution

The fourth proportional to 379,103,999.40, 568,655,999.10 and 317,881,996.20 is: 476,822,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,103,999.40 : 568,655,999.10 = 317,881,996.20 : x
  2. Step 2: Convert to fraction form
    379,103,999.40/568,655,999.10 = 317,881,996.20/x
  3. Step 3: Cross multiply
    379,103,999.40x = 568,655,999.10 × 317,881,996.20
  4. Step 4: Simplify right side
    379,103,999.40x = 180,765,504,145,013,408
  5. Step 5: Solve for x
    x = 180,765,504,145,013,408/379,103,999.40
  6. Step 6: Final answer
    x = 476,822,994.30

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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.