Home / 28,083,936,705.82-38,755,823,302.29-15,396,399,958.48

Finding the Fourth Proportional to 28,083,936,705.82, 38,755,823,302.29 and 15,396,399,958.48

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Solution

The fourth proportional to 28,083,936,705.82, 38,755,823,302.29 and 15,396,399,958.48 is: 21,247,026,815.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083,936,705.82 : 38,755,823,302.29 = 15,396,399,958.48 : x
  2. Step 2: Convert to fraction form
    28,083,936,705.82/38,755,823,302.29 = 15,396,399,958.48/x
  3. Step 3: Cross multiply
    28,083,936,705.82x = 38,755,823,302.29 × 15,396,399,958.48
  4. Step 4: Simplify right side
    28,083,936,705.82x = 596,700,156,282,235,912,192
  5. Step 5: Solve for x
    x = 596,700,156,282,235,912,192/28,083,936,705.82
  6. Step 6: Final answer
    x = 21,247,026,815.82

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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.