Home / 79,120,012.20-118,680,018.30-48,509,010.60

Finding the Fourth Proportional to 79,120,012.20, 118,680,018.30 and 48,509,010.60

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Solution

The fourth proportional to 79,120,012.20, 118,680,018.30 and 48,509,010.60 is: 72,763,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,120,012.20 : 118,680,018.30 = 48,509,010.60 : x
  2. Step 2: Convert to fraction form
    79,120,012.20/118,680,018.30 = 48,509,010.60/x
  3. Step 3: Cross multiply
    79,120,012.20x = 118,680,018.30 × 48,509,010.60
  4. Step 4: Simplify right side
    79,120,012.20x = 5,757,050,265,722,894
  5. Step 5: Solve for x
    x = 5,757,050,265,722,894/79,120,012.20
  6. Step 6: Final answer
    x = 72,763,515.90

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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.