Home / 13,565,621.25-18,720,553.02-7,454,443.41

Finding the Fourth Proportional to 13,565,621.25, 18,720,553.02 and 7,454,443.41

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Solution

The fourth proportional to 13,565,621.25, 18,720,553.02 and 7,454,443.41 is: 10,287,129.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565,621.25 : 18,720,553.02 = 7,454,443.41 : x
  2. Step 2: Convert to fraction form
    13,565,621.25/18,720,553.02 = 7,454,443.41/x
  3. Step 3: Cross multiply
    13,565,621.25x = 18,720,553.02 × 7,454,443.41
  4. Step 4: Simplify right side
    13,565,621.25x = 139,551,303,091,494.59
  5. Step 5: Solve for x
    x = 139,551,303,091,494.59/13,565,621.25
  6. Step 6: Final answer
    x = 10,287,129.54

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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.