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Finding the Fourth Proportional to 66,764,280.20, 100,146,420.30 and 50,395,897.40

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Solution

The fourth proportional to 66,764,280.20, 100,146,420.30 and 50,395,897.40 is: 75,593,846.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,764,280.20 : 100,146,420.30 = 50,395,897.40 : x
  2. Step 2: Convert to fraction form
    66,764,280.20/100,146,420.30 = 50,395,897.40/x
  3. Step 3: Cross multiply
    66,764,280.20x = 100,146,420.30 × 50,395,897.40
  4. Step 4: Simplify right side
    66,764,280.20x = 5,046,968,722,416,077
  5. Step 5: Solve for x
    x = 5,046,968,722,416,077/66,764,280.20
  6. Step 6: Final answer
    x = 75,593,846.10

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1.5x scale

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.