Home / 10,434,579.40-15,633,206.70-6,440,825.80

Finding the Fourth Proportional to 10,434,579.40, 15,633,206.70 and 6,440,825.80

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Solution

The fourth proportional to 10,434,579.40, 15,633,206.70 and 6,440,825.80 is: 9,649,719.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,434,579.40 : 15,633,206.70 = 6,440,825.80 : x
  2. Step 2: Convert to fraction form
    10,434,579.40/15,633,206.70 = 6,440,825.80/x
  3. Step 3: Cross multiply
    10,434,579.40x = 15,633,206.70 × 6,440,825.80
  4. Step 4: Simplify right side
    10,434,579.40x = 100,690,761,050,092.86
  5. Step 5: Solve for x
    x = 100,690,761,050,092.86/10,434,579.40
  6. Step 6: Final answer
    x = 9,649,719.19

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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.