Home / 28,040,790,487.40-38,696,148,945.06-15,353,295,638.12

Finding the Fourth Proportional to 28,040,790,487.40, 38,696,148,945.06 and 15,353,295,638.12

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Solution

The fourth proportional to 28,040,790,487.40, 38,696,148,945.06 and 15,353,295,638.12 is: 21,187,470,270.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040,790,487.40 : 38,696,148,945.06 = 15,353,295,638.12 : x
  2. Step 2: Convert to fraction form
    28,040,790,487.40/38,696,148,945.06 = 15,353,295,638.12/x
  3. Step 3: Cross multiply
    28,040,790,487.40x = 38,696,148,945.06 × 15,353,295,638.12
  4. Step 4: Simplify right side
    28,040,790,487.40x = 594,113,414,810,231,504,896
  5. Step 5: Solve for x
    x = 594,113,414,810,231,504,896/28,040,790,487.40
  6. Step 6: Final answer
    x = 21,187,470,270.40

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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.