Home / 28,011,661.26-38,656,014.86-15,621,766.36

Finding the Fourth Proportional to 28,011,661.26, 38,656,014.86 and 15,621,766.36

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Solution

The fourth proportional to 28,011,661.26, 38,656,014.86 and 15,621,766.36 is: 21,557,994.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011,661.26 : 38,656,014.86 = 15,621,766.36 : x
  2. Step 2: Convert to fraction form
    28,011,661.26/38,656,014.86 = 15,621,766.36/x
  3. Step 3: Cross multiply
    28,011,661.26x = 38,656,014.86 × 15,621,766.36
  4. Step 4: Simplify right side
    28,011,661.26x = 603,875,232,551,608.12
  5. Step 5: Solve for x
    x = 603,875,232,551,608.12/28,011,661.26
  6. Step 6: Final answer
    x = 21,557,994.26

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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.