Home / 21,294,054.56-31,941,067.08-5,120,000.48

Finding the Fourth Proportional to 21,294,054.56, 31,941,067.08 and 5,120,000.48

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Solution

The fourth proportional to 21,294,054.56, 31,941,067.08 and 5,120,000.48 is: 7,679,997.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294,054.56 : 31,941,067.08 = 5,120,000.48 : x
  2. Step 2: Convert to fraction form
    21,294,054.56/31,941,067.08 = 5,120,000.48/x
  3. Step 3: Cross multiply
    21,294,054.56x = 31,941,067.08 × 5,120,000.48
  4. Step 4: Simplify right side
    21,294,054.56x = 163,538,278,781,312.22
  5. Step 5: Solve for x
    x = 163,538,278,781,312.22/21,294,054.56
  6. Step 6: Final answer
    x = 7,679,997.17

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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.