Home / 13,686,785.84-18,886,482.24-8,179,064.12

Finding the Fourth Proportional to 13,686,785.84, 18,886,482.24 and 8,179,064.12

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Solution

The fourth proportional to 13,686,785.84, 18,886,482.24 and 8,179,064.12 is: 11,286,342.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,686,785.84 : 18,886,482.24 = 8,179,064.12 : x
  2. Step 2: Convert to fraction form
    13,686,785.84/18,886,482.24 = 8,179,064.12/x
  3. Step 3: Cross multiply
    13,686,785.84x = 18,886,482.24 × 8,179,064.12
  4. Step 4: Simplify right side
    13,686,785.84x = 154,473,749,242,201.22
  5. Step 5: Solve for x
    x = 154,473,749,242,201.22/13,686,785.84
  6. Step 6: Final answer
    x = 11,286,342.25

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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.