Home / 27,620,957,018.76-38,116,848,992.88-15,413,534,141.96

Finding the Fourth Proportional to 27,620,957,018.76, 38,116,848,992.88 and 15,413,534,141.96

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Solution

The fourth proportional to 27,620,957,018.76, 38,116,848,992.88 and 15,413,534,141.96 is: 21,270,637,108.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620,957,018.76 : 38,116,848,992.88 = 15,413,534,141.96 : x
  2. Step 2: Convert to fraction form
    27,620,957,018.76/38,116,848,992.88 = 15,413,534,141.96/x
  3. Step 3: Cross multiply
    27,620,957,018.76x = 38,116,848,992.88 × 15,413,534,141.96
  4. Step 4: Simplify right side
    27,620,957,018.76x = 587,515,353,335,689,445,376
  5. Step 5: Solve for x
    x = 587,515,353,335,689,445,376/27,620,957,018.76
  6. Step 6: Final answer
    x = 21,270,637,108.51

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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.