Home / 28,180,725.15-42,272,205.54-13,405,272.06

Finding the Fourth Proportional to 28,180,725.15, 42,272,205.54 and 13,405,272.06

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Solution

The fourth proportional to 28,180,725.15, 42,272,205.54 and 13,405,272.06 is: 20,108,439.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,180,725.15 : 42,272,205.54 = 13,405,272.06 : x
  2. Step 2: Convert to fraction form
    28,180,725.15/42,272,205.54 = 13,405,272.06/x
  3. Step 3: Cross multiply
    28,180,725.15x = 42,272,205.54 × 13,405,272.06
  4. Step 4: Simplify right side
    28,180,725.15x = 566,670,415,839,939.25
  5. Step 5: Solve for x
    x = 566,670,415,839,939.25/28,180,725.15
  6. Step 6: Final answer
    x = 20,108,439.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.