Home / 2,156,615.85-2,976,129.71-1,189,746.16

Finding the Fourth Proportional to 2,156,615.85, 2,976,129.71 and 1,189,746.16

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Solution

The fourth proportional to 2,156,615.85, 2,976,129.71 and 1,189,746.16 is: 1,641,849.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,615.85 : 2,976,129.71 = 1,189,746.16 : x
  2. Step 2: Convert to fraction form
    2,156,615.85/2,976,129.71 = 1,189,746.16/x
  3. Step 3: Cross multiply
    2,156,615.85x = 2,976,129.71 × 1,189,746.16
  4. Step 4: Simplify right side
    2,156,615.85x = 3,540,838,885,206.91
  5. Step 5: Solve for x
    x = 3,540,838,885,206.91/2,156,615.85
  6. Step 6: Final answer
    x = 1,641,849.60

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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.