Home / 4,751,428.86-7,127,143.20-2,191,886.64

Finding the Fourth Proportional to 4,751,428.86, 7,127,143.20 and 2,191,886.64

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Solution

The fourth proportional to 4,751,428.86, 7,127,143.20 and 2,191,886.64 is: 3,287,829.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751,428.86 : 7,127,143.20 = 2,191,886.64 : x
  2. Step 2: Convert to fraction form
    4,751,428.86/7,127,143.20 = 2,191,886.64/x
  3. Step 3: Cross multiply
    4,751,428.86x = 7,127,143.20 × 2,191,886.64
  4. Step 4: Simplify right side
    4,751,428.86x = 15,621,889,961,446.85
  5. Step 5: Solve for x
    x = 15,621,889,961,446.85/4,751,428.86
  6. Step 6: Final answer
    x = 3,287,829.92

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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.