Home / 1,360,597,902.80-2,040,697,788.60-391,148,430.80

Finding the Fourth Proportional to 1,360,597,902.80, 2,040,697,788.60 and 391,148,430.80

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Solution

The fourth proportional to 1,360,597,902.80, 2,040,697,788.60 and 391,148,430.80 is: 586,665,418.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360,597,902.80 : 2,040,697,788.60 = 391,148,430.80 : x
  2. Step 2: Convert to fraction form
    1,360,597,902.80/2,040,697,788.60 = 391,148,430.80/x
  3. Step 3: Cross multiply
    1,360,597,902.80x = 2,040,697,788.60 × 391,148,430.80
  4. Step 4: Simplify right side
    1,360,597,902.80x = 798,215,737,747,920,128
  5. Step 5: Solve for x
    x = 798,215,737,747,920,128/1,360,597,902.80
  6. Step 6: Final answer
    x = 586,665,418.27

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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.