Home / 786,303,003.60-1,179,454,505.40-480,192,987.60

Finding the Fourth Proportional to 786,303,003.60, 1,179,454,505.40 and 480,192,987.60

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Solution

The fourth proportional to 786,303,003.60, 1,179,454,505.40 and 480,192,987.60 is: 720,289,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,303,003.60 : 1,179,454,505.40 = 480,192,987.60 : x
  2. Step 2: Convert to fraction form
    786,303,003.60/1,179,454,505.40 = 480,192,987.60/x
  3. Step 3: Cross multiply
    786,303,003.60x = 1,179,454,505.40 × 480,192,987.60
  4. Step 4: Simplify right side
    786,303,003.60x = 566,365,782,686,306,432
  5. Step 5: Solve for x
    x = 566,365,782,686,306,432/786,303,003.60
  6. Step 6: Final answer
    x = 720,289,481.40

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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.