Home / 15,487,903.90-21,395,163.42-12,410,867.80

Finding the Fourth Proportional to 15,487,903.90, 21,395,163.42 and 12,410,867.80

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Solution

The fourth proportional to 15,487,903.90, 21,395,163.42 and 12,410,867.80 is: 17,144,511.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,487,903.90 : 21,395,163.42 = 12,410,867.80 : x
  2. Step 2: Convert to fraction form
    15,487,903.90/21,395,163.42 = 12,410,867.80/x
  3. Step 3: Cross multiply
    15,487,903.90x = 21,395,163.42 × 12,410,867.80
  4. Step 4: Simplify right side
    15,487,903.90x = 265,532,544,765,015.91
  5. Step 5: Solve for x
    x = 265,532,544,765,015.91/15,487,903.90
  6. Step 6: Final answer
    x = 17,144,511.39

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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.