Home / 165,780,028.80-248,570,510.40-85,158,460.80

Finding the Fourth Proportional to 165,780,028.80, 248,570,510.40 and 85,158,460.80

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Solution

The fourth proportional to 165,780,028.80, 248,570,510.40 and 85,158,460.80 is: 127,686,562.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,780,028.80 : 248,570,510.40 = 85,158,460.80 : x
  2. Step 2: Convert to fraction form
    165,780,028.80/248,570,510.40 = 85,158,460.80/x
  3. Step 3: Cross multiply
    165,780,028.80x = 248,570,510.40 × 85,158,460.80
  4. Step 4: Simplify right side
    165,780,028.80x = 21,167,882,065,934,392
  5. Step 5: Solve for x
    x = 21,167,882,065,934,392/165,780,028.80
  6. Step 6: Final answer
    x = 127,686,562.85

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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.