Home / 79,120,027.20-118,680,040.80-48,509,025.60

Finding the Fourth Proportional to 79,120,027.20, 118,680,040.80 and 48,509,025.60

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Solution

The fourth proportional to 79,120,027.20, 118,680,040.80 and 48,509,025.60 is: 72,763,538.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,120,027.20 : 118,680,040.80 = 48,509,025.60 : x
  2. Step 2: Convert to fraction form
    79,120,027.20/118,680,040.80 = 48,509,025.60/x
  3. Step 3: Cross multiply
    79,120,027.20x = 118,680,040.80 × 48,509,025.60
  4. Step 4: Simplify right side
    79,120,027.20x = 5,757,053,137,376,245
  5. Step 5: Solve for x
    x = 5,757,053,137,376,245/79,120,027.20
  6. Step 6: Final answer
    x = 72,763,538.40

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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.