Home / 10,891,720.40-16,342,829.40-7,689,952.40

Finding the Fourth Proportional to 10,891,720.40, 16,342,829.40 and 7,689,952.40

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Solution

The fourth proportional to 10,891,720.40, 16,342,829.40 and 7,689,952.40 is: 11,538,634.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891,720.40 : 16,342,829.40 = 7,689,952.40 : x
  2. Step 2: Convert to fraction form
    10,891,720.40/16,342,829.40 = 7,689,952.40/x
  3. Step 3: Cross multiply
    10,891,720.40x = 16,342,829.40 × 7,689,952.40
  4. Step 4: Simplify right side
    10,891,720.40x = 125,675,580,167,320.56
  5. Step 5: Solve for x
    x = 125,675,580,167,320.56/10,891,720.40
  6. Step 6: Final answer
    x = 11,538,634.44

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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.