Home / 14,912,375,436.12-20,579,514,394.37-8,138,628,477.66

Finding the Fourth Proportional to 14,912,375,436.12, 20,579,514,394.37 and 8,138,628,477.66

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Solution

The fourth proportional to 14,912,375,436.12, 20,579,514,394.37 and 8,138,628,477.66 is: 11,231,545,411.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,912,375,436.12 : 20,579,514,394.37 = 8,138,628,477.66 : x
  2. Step 2: Convert to fraction form
    14,912,375,436.12/20,579,514,394.37 = 8,138,628,477.66/x
  3. Step 3: Cross multiply
    14,912,375,436.12x = 20,579,514,394.37 × 8,138,628,477.66
  4. Step 4: Simplify right side
    14,912,375,436.12x = 167,489,021,906,392,875,008
  5. Step 5: Solve for x
    x = 167,489,021,906,392,875,008/14,912,375,436.12
  6. Step 6: Final answer
    x = 11,231,545,411.65

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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.