Home / 839,815,037.70-1,259,722,556.55-379,768,215.30

Finding the Fourth Proportional to 839,815,037.70, 1,259,722,556.55 and 379,768,215.30

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Solution

The fourth proportional to 839,815,037.70, 1,259,722,556.55 and 379,768,215.30 is: 569,652,322.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,815,037.70 : 1,259,722,556.55 = 379,768,215.30 : x
  2. Step 2: Convert to fraction form
    839,815,037.70/1,259,722,556.55 = 379,768,215.30/x
  3. Step 3: Cross multiply
    839,815,037.70x = 1,259,722,556.55 × 379,768,215.30
  4. Step 4: Simplify right side
    839,815,037.70x = 478,402,587,074,146,816
  5. Step 5: Solve for x
    x = 478,402,587,074,146,816/839,815,037.70
  6. Step 6: Final answer
    x = 569,652,322.95

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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.