Home / 20,368,645,233.54-28,108,234,331.51-11,213,099,659.65

Finding the Fourth Proportional to 20,368,645,233.54, 28,108,234,331.51 and 11,213,099,659.65

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Solution

The fourth proportional to 20,368,645,233.54, 28,108,234,331.51 and 11,213,099,659.65 is: 15,473,804,428.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368,645,233.54 : 28,108,234,331.51 = 11,213,099,659.65 : x
  2. Step 2: Convert to fraction form
    20,368,645,233.54/28,108,234,331.51 = 11,213,099,659.65/x
  3. Step 3: Cross multiply
    20,368,645,233.54x = 28,108,234,331.51 × 11,213,099,659.65
  4. Step 4: Simplify right side
    20,368,645,233.54x = 315,180,432,815,949,807,616
  5. Step 5: Solve for x
    x = 315,180,432,815,949,807,616/20,368,645,233.54
  6. Step 6: Final answer
    x = 15,473,804,428.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.