Home / 15,854,932.19-21,879,434.25-9,328,984.31

Finding the Fourth Proportional to 15,854,932.19, 21,879,434.25 and 9,328,984.31

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Solution

The fourth proportional to 15,854,932.19, 21,879,434.25 and 9,328,984.31 is: 12,873,779.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,854,932.19 : 21,879,434.25 = 9,328,984.31 : x
  2. Step 2: Convert to fraction form
    15,854,932.19/21,879,434.25 = 9,328,984.31/x
  3. Step 3: Cross multiply
    15,854,932.19x = 21,879,434.25 × 9,328,984.31
  4. Step 4: Simplify right side
    15,854,932.19x = 204,112,898,829,926.62
  5. Step 5: Solve for x
    x = 204,112,898,829,926.62/15,854,932.19
  6. Step 6: Final answer
    x = 12,873,779.36

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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.