Home / 13,576,893.12-18,735,980.76-7,381,939.77

Finding the Fourth Proportional to 13,576,893.12, 18,735,980.76 and 7,381,939.77

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Solution

The fourth proportional to 13,576,893.12, 18,735,980.76 and 7,381,939.77 is: 10,187,005.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576,893.12 : 18,735,980.76 = 7,381,939.77 : x
  2. Step 2: Convert to fraction form
    13,576,893.12/18,735,980.76 = 7,381,939.77/x
  3. Step 3: Cross multiply
    13,576,893.12x = 18,735,980.76 × 7,381,939.77
  4. Step 4: Simplify right side
    13,576,893.12x = 138,307,881,502,198.83
  5. Step 5: Solve for x
    x = 138,307,881,502,198.83/13,576,893.12
  6. Step 6: Final answer
    x = 10,187,005.25

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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.