Home / 12,642,207.75-17,446,292.96-6,840,989.55

Finding the Fourth Proportional to 12,642,207.75, 17,446,292.96 and 6,840,989.55

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Solution

The fourth proportional to 12,642,207.75, 17,446,292.96 and 6,840,989.55 is: 9,440,590.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,642,207.75 : 17,446,292.96 = 6,840,989.55 : x
  2. Step 2: Convert to fraction form
    12,642,207.75/17,446,292.96 = 6,840,989.55/x
  3. Step 3: Cross multiply
    12,642,207.75x = 17,446,292.96 × 6,840,989.55
  4. Step 4: Simplify right side
    12,642,207.75x = 119,349,907,791,393.61
  5. Step 5: Solve for x
    x = 119,349,907,791,393.61/12,642,207.75
  6. Step 6: Final answer
    x = 9,440,590.61

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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.