Home / 9,778,512.78-13,493,711.70-5,427,600.21

Finding the Fourth Proportional to 9,778,512.78, 13,493,711.70 and 5,427,600.21

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Solution

The fourth proportional to 9,778,512.78, 13,493,711.70 and 5,427,600.21 is: 7,489,735.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,778,512.78 : 13,493,711.70 = 5,427,600.21 : x
  2. Step 2: Convert to fraction form
    9,778,512.78/13,493,711.70 = 5,427,600.21/x
  3. Step 3: Cross multiply
    9,778,512.78x = 13,493,711.70 × 5,427,600.21
  4. Step 4: Simplify right side
    9,778,512.78x = 73,238,472,456,599.45
  5. Step 5: Solve for x
    x = 73,238,472,456,599.45/9,778,512.78
  6. Step 6: Final answer
    x = 7,489,735.31

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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.