Home / 13,576,879.12-18,735,961.47-7,381,925.77

Finding the Fourth Proportional to 13,576,879.12, 18,735,961.47 and 7,381,925.77

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Solution

The fourth proportional to 13,576,879.12, 18,735,961.47 and 7,381,925.77 is: 10,186,985.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576,879.12 : 18,735,961.47 = 7,381,925.77 : x
  2. Step 2: Convert to fraction form
    13,576,879.12/18,735,961.47 = 7,381,925.77/x
  3. Step 3: Cross multiply
    13,576,879.12x = 18,735,961.47 × 7,381,925.77
  4. Step 4: Simplify right side
    13,576,879.12x = 138,307,476,801,120.06
  5. Step 5: Solve for x
    x = 138,307,476,801,120.06/13,576,879.12
  6. Step 6: Final answer
    x = 10,186,985.95

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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.