Home / 12,119,215.88-16,709,390.78-7,761,137.24

Finding the Fourth Proportional to 12,119,215.88, 16,709,390.78 and 7,761,137.24

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Solution

The fourth proportional to 12,119,215.88, 16,709,390.78 and 7,761,137.24 is: 10,700,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119,215.88 : 16,709,390.78 = 7,761,137.24 : x
  2. Step 2: Convert to fraction form
    12,119,215.88/16,709,390.78 = 7,761,137.24/x
  3. Step 3: Cross multiply
    12,119,215.88x = 16,709,390.78 × 7,761,137.24
  4. Step 4: Simplify right side
    12,119,215.88x = 129,683,875,043,338.44
  5. Step 5: Solve for x
    x = 129,683,875,043,338.44/12,119,215.88
  6. Step 6: Final answer
    x = 10,700,681.98

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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.