Home / 1,119,747,231.20-1,679,620,846.80-712,608,312.80

Finding the Fourth Proportional to 1,119,747,231.20, 1,679,620,846.80 and 712,608,312.80

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Solution

The fourth proportional to 1,119,747,231.20, 1,679,620,846.80 and 712,608,312.80 is: 1,068,912,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,747,231.20 : 1,679,620,846.80 = 712,608,312.80 : x
  2. Step 2: Convert to fraction form
    1,119,747,231.20/1,679,620,846.80 = 712,608,312.80/x
  3. Step 3: Cross multiply
    1,119,747,231.20x = 1,679,620,846.80 × 712,608,312.80
  4. Step 4: Simplify right side
    1,119,747,231.20x = 1,196,911,777,781,855,232
  5. Step 5: Solve for x
    x = 1,196,911,777,781,855,232/1,119,747,231.20
  6. Step 6: Final answer
    x = 1,068,912,469.20

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Double scale
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Similar ratio
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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.