Home / 12,286,205.10-18,455,879.70-8,698,978.35

Finding the Fourth Proportional to 12,286,205.10, 18,455,879.70 and 8,698,978.35

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Solution

The fourth proportional to 12,286,205.10, 18,455,879.70 and 8,698,978.35 is: 13,067,281.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286,205.10 : 18,455,879.70 = 8,698,978.35 : x
  2. Step 2: Convert to fraction form
    12,286,205.10/18,455,879.70 = 8,698,978.35/x
  3. Step 3: Cross multiply
    12,286,205.10x = 18,455,879.70 × 8,698,978.35
  4. Step 4: Simplify right side
    12,286,205.10x = 160,547,297,940,504.47
  5. Step 5: Solve for x
    x = 160,547,297,940,504.47/12,286,205.10
  6. Step 6: Final answer
    x = 13,067,281.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.