Home / 10,508,954.10-15,766,383.60-5,117,780.40

Finding the Fourth Proportional to 10,508,954.10, 15,766,383.60 and 5,117,780.40

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Solution

The fourth proportional to 10,508,954.10, 15,766,383.60 and 5,117,780.40 is: 7,678,108.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,508,954.10 : 15,766,383.60 = 5,117,780.40 : x
  2. Step 2: Convert to fraction form
    10,508,954.10/15,766,383.60 = 5,117,780.40/x
  3. Step 3: Cross multiply
    10,508,954.10x = 15,766,383.60 × 5,117,780.40
  4. Step 4: Simplify right side
    10,508,954.10x = 80,688,888,966,961.44
  5. Step 5: Solve for x
    x = 80,688,888,966,961.44/10,508,954.10
  6. Step 6: Final answer
    x = 7,678,108.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.