Home / 13,420,883.52-18,521,032.32-7,619,546.88

Finding the Fourth Proportional to 13,420,883.52, 18,521,032.32 and 7,619,546.88

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Solution

The fourth proportional to 13,420,883.52, 18,521,032.32 and 7,619,546.88 is: 10,515,095.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420,883.52 : 18,521,032.32 = 7,619,546.88 : x
  2. Step 2: Convert to fraction form
    13,420,883.52/18,521,032.32 = 7,619,546.88/x
  3. Step 3: Cross multiply
    13,420,883.52x = 18,521,032.32 × 7,619,546.88
  4. Step 4: Simplify right side
    13,420,883.52x = 141,121,874,028,235.16
  5. Step 5: Solve for x
    x = 141,121,874,028,235.16/13,420,883.52
  6. Step 6: Final answer
    x = 10,515,095.66

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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.