Home / 177,379,840.60-266,069,760.90-128,628,986.20

Finding the Fourth Proportional to 177,379,840.60, 266,069,760.90 and 128,628,986.20

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Solution

The fourth proportional to 177,379,840.60, 266,069,760.90 and 128,628,986.20 is: 192,943,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,379,840.60 : 266,069,760.90 = 128,628,986.20 : x
  2. Step 2: Convert to fraction form
    177,379,840.60/266,069,760.90 = 128,628,986.20/x
  3. Step 3: Cross multiply
    177,379,840.60x = 266,069,760.90 × 128,628,986.20
  4. Step 4: Simplify right side
    177,379,840.60x = 34,224,283,603,043,400
  5. Step 5: Solve for x
    x = 34,224,283,603,043,400/177,379,840.60
  6. Step 6: Final answer
    x = 192,943,479.30

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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.