Home / 12,790,031.47-19,185,711.61-6,398,124.84

Finding the Fourth Proportional to 12,790,031.47, 19,185,711.61 and 6,398,124.84

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Solution

The fourth proportional to 12,790,031.47, 19,185,711.61 and 6,398,124.84 is: 9,597,519.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790,031.47 : 19,185,711.61 = 6,398,124.84 : x
  2. Step 2: Convert to fraction form
    12,790,031.47/19,185,711.61 = 6,398,124.84/x
  3. Step 3: Cross multiply
    12,790,031.47x = 19,185,711.61 × 6,398,124.84
  4. Step 4: Simplify right side
    12,790,031.47x = 122,752,578,056,986.38
  5. Step 5: Solve for x
    x = 122,752,578,056,986.38/12,790,031.47
  6. Step 6: Final answer
    x = 9,597,519.63

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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.