Home / 28,864,240.56-39,832,659-15,811,963.44

Finding the Fourth Proportional to 28,864,240.56, 39,832,659 and 15,811,963.44

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Solution

The fourth proportional to 28,864,240.56, 39,832,659 and 15,811,963.44 is: 21,820,513.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,864,240.56 : 39,832,659 = 15,811,963.44 : x
  2. Step 2: Convert to fraction form
    28,864,240.56/39,832,659 = 15,811,963.44/x
  3. Step 3: Cross multiply
    28,864,240.56x = 39,832,659 × 15,811,963.44
  4. Step 4: Simplify right side
    28,864,240.56x = 629,832,547,825,987
  5. Step 5: Solve for x
    x = 629,832,547,825,987/28,864,240.56
  6. Step 6: Final answer
    x = 21,820,513.40

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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.