Home / 12,338,891.40-17,029,742.76-7,185,291.60

Finding the Fourth Proportional to 12,338,891.40, 17,029,742.76 and 7,185,291.60

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Solution

The fourth proportional to 12,338,891.40, 17,029,742.76 and 7,185,291.60 is: 9,916,909.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,338,891.40 : 17,029,742.76 = 7,185,291.60 : x
  2. Step 2: Convert to fraction form
    12,338,891.40/17,029,742.76 = 7,185,291.60/x
  3. Step 3: Cross multiply
    12,338,891.40x = 17,029,742.76 × 7,185,291.60
  4. Step 4: Simplify right side
    12,338,891.40x = 122,363,667,603,588.83
  5. Step 5: Solve for x
    x = 122,363,667,603,588.83/12,338,891.40
  6. Step 6: Final answer
    x = 9,916,909.36

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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.