Home / 5,145,316.14-7,718,813.47-2,111,867.86

Finding the Fourth Proportional to 5,145,316.14, 7,718,813.47 and 2,111,867.86

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Solution

The fourth proportional to 5,145,316.14, 7,718,813.47 and 2,111,867.86 is: 3,168,146.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145,316.14 : 7,718,813.47 = 2,111,867.86 : x
  2. Step 2: Convert to fraction form
    5,145,316.14/7,718,813.47 = 2,111,867.86/x
  3. Step 3: Cross multiply
    5,145,316.14x = 7,718,813.47 × 2,111,867.86
  4. Step 4: Simplify right side
    5,145,316.14x = 16,301,114,067,970.88
  5. Step 5: Solve for x
    x = 16,301,114,067,970.88/5,145,316.14
  6. Step 6: Final answer
    x = 3,168,146.26

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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.