Home / 12,642,173.20-17,446,077.48-6,840,827.92

Finding the Fourth Proportional to 12,642,173.20, 17,446,077.48 and 6,840,827.92

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Solution

The fourth proportional to 12,642,173.20, 17,446,077.48 and 6,840,827.92 is: 9,440,276.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,642,173.20 : 17,446,077.48 = 6,840,827.92 : x
  2. Step 2: Convert to fraction form
    12,642,173.20/17,446,077.48 = 6,840,827.92/x
  3. Step 3: Cross multiply
    12,642,173.20x = 17,446,077.48 × 6,840,827.92
  4. Step 4: Simplify right side
    12,642,173.20x = 119,345,613,919,667.25
  5. Step 5: Solve for x
    x = 119,345,613,919,667.25/12,642,173.20
  6. Step 6: Final answer
    x = 9,440,276.77

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1.5x scale

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.