Home / 825,736,077.10-1,238,604,115.65-280,477,611.10

Finding the Fourth Proportional to 825,736,077.10, 1,238,604,115.65 and 280,477,611.10

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Solution

The fourth proportional to 825,736,077.10, 1,238,604,115.65 and 280,477,611.10 is: 420,716,416.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,736,077.10 : 1,238,604,115.65 = 280,477,611.10 : x
  2. Step 2: Convert to fraction form
    825,736,077.10/1,238,604,115.65 = 280,477,611.10/x
  3. Step 3: Cross multiply
    825,736,077.10x = 1,238,604,115.65 × 280,477,611.10
  4. Step 4: Simplify right side
    825,736,077.10x = 347,400,723,456,140,160
  5. Step 5: Solve for x
    x = 347,400,723,456,140,160/825,736,077.10
  6. Step 6: Final answer
    x = 420,716,416.65

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Similar ratio
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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.