Home / 15,528,133.94-21,430,419.36-9,335,185.52

Finding the Fourth Proportional to 15,528,133.94, 21,430,419.36 and 9,335,185.52

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Solution

The fourth proportional to 15,528,133.94, 21,430,419.36 and 9,335,185.52 is: 12,883,514.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,528,133.94 : 21,430,419.36 = 9,335,185.52 : x
  2. Step 2: Convert to fraction form
    15,528,133.94/21,430,419.36 = 9,335,185.52/x
  3. Step 3: Cross multiply
    15,528,133.94x = 21,430,419.36 × 9,335,185.52
  4. Step 4: Simplify right side
    15,528,133.94x = 200,056,940,496,999.66
  5. Step 5: Solve for x
    x = 200,056,940,496,999.66/15,528,133.94
  6. Step 6: Final answer
    x = 12,883,514.61

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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.