Home / 7,120,430.21-10,680,497.80-1,729,108.89

Finding the Fourth Proportional to 7,120,430.21, 10,680,497.80 and 1,729,108.89

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Solution

The fourth proportional to 7,120,430.21, 10,680,497.80 and 1,729,108.89 is: 2,593,627.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120,430.21 : 10,680,497.80 = 1,729,108.89 : x
  2. Step 2: Convert to fraction form
    7,120,430.21/10,680,497.80 = 1,729,108.89/x
  3. Step 3: Cross multiply
    7,120,430.21x = 10,680,497.80 × 1,729,108.89
  4. Step 4: Simplify right side
    7,120,430.21x = 18,467,743,691,282.67
  5. Step 5: Solve for x
    x = 18,467,743,691,282.67/7,120,430.21
  6. Step 6: Final answer
    x = 2,593,627.51

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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.