Home / 12,963,217.61-17,889,427.91-7,162,132.79

Finding the Fourth Proportional to 12,963,217.61, 17,889,427.91 and 7,162,132.79

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Solution

The fourth proportional to 12,963,217.61, 17,889,427.91 and 7,162,132.79 is: 9,883,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963,217.61 : 17,889,427.91 = 7,162,132.79 : x
  2. Step 2: Convert to fraction form
    12,963,217.61/17,889,427.91 = 7,162,132.79/x
  3. Step 3: Cross multiply
    12,963,217.61x = 17,889,427.91 × 7,162,132.79
  4. Step 4: Simplify right side
    12,963,217.61x = 128,126,458,228,552.17
  5. Step 5: Solve for x
    x = 128,126,458,228,552.17/12,963,217.61
  6. Step 6: Final answer
    x = 9,883,846.90

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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.