Home / 28,006,114,033.51-38,648,553,808.61-15,145,753,992.26

Finding the Fourth Proportional to 28,006,114,033.51, 38,648,553,808.61 and 15,145,753,992.26

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Solution

The fourth proportional to 28,006,114,033.51, 38,648,553,808.61 and 15,145,753,992.26 is: 20,901,203,481.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006,114,033.51 : 38,648,553,808.61 = 15,145,753,992.26 : x
  2. Step 2: Convert to fraction form
    28,006,114,033.51/38,648,553,808.61 = 15,145,753,992.26/x
  3. Step 3: Cross multiply
    28,006,114,033.51x = 38,648,553,808.61 × 15,145,753,992.26
  4. Step 4: Simplify right side
    28,006,114,033.51x = 585,361,488,141,682,475,008
  5. Step 5: Solve for x
    x = 585,361,488,141,682,475,008/28,006,114,033.51
  6. Step 6: Final answer
    x = 20,901,203,481.55

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Double scale
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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.