Home / 511,840,954.40-767,761,431.60-455,405,856.80

Finding the Fourth Proportional to 511,840,954.40, 767,761,431.60 and 455,405,856.80

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Solution

The fourth proportional to 511,840,954.40, 767,761,431.60 and 455,405,856.80 is: 683,108,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,840,954.40 : 767,761,431.60 = 455,405,856.80 : x
  2. Step 2: Convert to fraction form
    511,840,954.40/767,761,431.60 = 455,405,856.80/x
  3. Step 3: Cross multiply
    511,840,954.40x = 767,761,431.60 × 455,405,856.80
  4. Step 4: Simplify right side
    511,840,954.40x = 349,643,052,575,792,640
  5. Step 5: Solve for x
    x = 349,643,052,575,792,640/511,840,954.40
  6. Step 6: Final answer
    x = 683,108,785.20

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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.