Home / 72,593,121.20-108,763,710.60-47,020,967.60

Finding the Fourth Proportional to 72,593,121.20, 108,763,710.60 and 47,020,967.60

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Solution

The fourth proportional to 72,593,121.20, 108,763,710.60 and 47,020,967.60 is: 70,449,855.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,593,121.20 : 108,763,710.60 = 47,020,967.60 : x
  2. Step 2: Convert to fraction form
    72,593,121.20/108,763,710.60 = 47,020,967.60/x
  3. Step 3: Cross multiply
    72,593,121.20x = 108,763,710.60 × 47,020,967.60
  4. Step 4: Simplify right side
    72,593,121.20x = 5,114,174,912,178,376
  5. Step 5: Solve for x
    x = 5,114,174,912,178,376/72,593,121.20
  6. Step 6: Final answer
    x = 70,449,855.68

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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.