Home / 13,013,299.46-19,403,606.69-12,655,767.82

Finding the Fourth Proportional to 13,013,299.46, 19,403,606.69 and 12,655,767.82

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Solution

The fourth proportional to 13,013,299.46, 19,403,606.69 and 12,655,767.82 is: 18,870,505.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013,299.46 : 19,403,606.69 = 12,655,767.82 : x
  2. Step 2: Convert to fraction form
    13,013,299.46/19,403,606.69 = 12,655,767.82/x
  3. Step 3: Cross multiply
    13,013,299.46x = 19,403,606.69 × 12,655,767.82
  4. Step 4: Simplify right side
    13,013,299.46x = 245,567,541,027,450.84
  5. Step 5: Solve for x
    x = 245,567,541,027,450.84/13,013,299.46
  6. Step 6: Final answer
    x = 18,870,505.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.