Home / 2,156,181.72-2,975,478.63-1,189,291.23

Finding the Fourth Proportional to 2,156,181.72, 2,975,478.63 and 1,189,291.23

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Solution

The fourth proportional to 2,156,181.72, 2,975,478.63 and 1,189,291.23 is: 1,641,193.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,181.72 : 2,975,478.63 = 1,189,291.23 : x
  2. Step 2: Convert to fraction form
    2,156,181.72/2,975,478.63 = 1,189,291.23/x
  3. Step 3: Cross multiply
    2,156,181.72x = 2,975,478.63 × 1,189,291.23
  4. Step 4: Simplify right side
    2,156,181.72x = 3,538,710,639,711.41
  5. Step 5: Solve for x
    x = 3,538,710,639,711.41/2,156,181.72
  6. Step 6: Final answer
    x = 1,641,193.14

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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.