Home / 21,198,496.32-31,798,267.20-7,735,320

Finding the Fourth Proportional to 21,198,496.32, 31,798,267.20 and 7,735,320

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Solution

The fourth proportional to 21,198,496.32, 31,798,267.20 and 7,735,320 is: 11,603,170.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,198,496.32 : 31,798,267.20 = 7,735,320 : x
  2. Step 2: Convert to fraction form
    21,198,496.32/31,798,267.20 = 7,735,320/x
  3. Step 3: Cross multiply
    21,198,496.32x = 31,798,267.20 × 7,735,320
  4. Step 4: Simplify right side
    21,198,496.32x = 245,969,772,237,504
  5. Step 5: Solve for x
    x = 245,969,772,237,504/21,198,496.32
  6. Step 6: Final answer
    x = 11,603,170.74

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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.