Home / 10,128,053.52-13,976,712.36-5,481,837.72

Finding the Fourth Proportional to 10,128,053.52, 13,976,712.36 and 5,481,837.72

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Solution

The fourth proportional to 10,128,053.52, 13,976,712.36 and 5,481,837.72 is: 7,564,935.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128,053.52 : 13,976,712.36 = 5,481,837.72 : x
  2. Step 2: Convert to fraction form
    10,128,053.52/13,976,712.36 = 5,481,837.72/x
  3. Step 3: Cross multiply
    10,128,053.52x = 13,976,712.36 × 5,481,837.72
  4. Step 4: Simplify right side
    10,128,053.52x = 76,618,069,016,638.22
  5. Step 5: Solve for x
    x = 76,618,069,016,638.22/10,128,053.52
  6. Step 6: Final answer
    x = 7,564,935.24

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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.