Home / 28,564,513.92-39,418,905.96-15,511,665.24

Finding the Fourth Proportional to 28,564,513.92, 39,418,905.96 and 15,511,665.24

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Solution

The fourth proportional to 28,564,513.92, 39,418,905.96 and 15,511,665.24 is: 21,406,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,564,513.92 : 39,418,905.96 = 15,511,665.24 : x
  2. Step 2: Convert to fraction form
    28,564,513.92/39,418,905.96 = 15,511,665.24/x
  3. Step 3: Cross multiply
    28,564,513.92x = 39,418,905.96 × 15,511,665.24
  4. Step 4: Simplify right side
    28,564,513.92x = 611,452,873,378,560.88
  5. Step 5: Solve for x
    x = 611,452,873,378,560.88/28,564,513.92
  6. Step 6: Final answer
    x = 21,406,031.10

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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.