Home / 617,915,270.20-927,470,102.10-311,553,311.80

Finding the Fourth Proportional to 617,915,270.20, 927,470,102.10 and 311,553,311.80

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Solution

The fourth proportional to 617,915,270.20, 927,470,102.10 and 311,553,311.80 is: 467,631,074.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,915,270.20 : 927,470,102.10 = 311,553,311.80 : x
  2. Step 2: Convert to fraction form
    617,915,270.20/927,470,102.10 = 311,553,311.80/x
  3. Step 3: Cross multiply
    617,915,270.20x = 927,470,102.10 × 311,553,311.80
  4. Step 4: Simplify right side
    617,915,270.20x = 288,956,381,904,739,136
  5. Step 5: Solve for x
    x = 288,956,381,904,739,136/617,915,270.20
  6. Step 6: Final answer
    x = 467,631,074.74

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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.