Home / 12,243,858.64-16,891,961.16-7,658,437.84

Finding the Fourth Proportional to 12,243,858.64, 16,891,961.16 and 7,658,437.84

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Solution

The fourth proportional to 12,243,858.64, 16,891,961.16 and 7,658,437.84 is: 10,565,789.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243,858.64 : 16,891,961.16 = 7,658,437.84 : x
  2. Step 2: Convert to fraction form
    12,243,858.64/16,891,961.16 = 7,658,437.84/x
  3. Step 3: Cross multiply
    12,243,858.64x = 16,891,961.16 × 7,658,437.84
  4. Step 4: Simplify right side
    12,243,858.64x = 129,366,034,539,554.30
  5. Step 5: Solve for x
    x = 129,366,034,539,554.30/12,243,858.64
  6. Step 6: Final answer
    x = 10,565,789.62

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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.