Home / 12,039,648.80-18,065,377.56-5,650,420.64

Finding the Fourth Proportional to 12,039,648.80, 18,065,377.56 and 5,650,420.64

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Solution

The fourth proportional to 12,039,648.80, 18,065,377.56 and 5,650,420.64 is: 8,478,401.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,039,648.80 : 18,065,377.56 = 5,650,420.64 : x
  2. Step 2: Convert to fraction form
    12,039,648.80/18,065,377.56 = 5,650,420.64/x
  3. Step 3: Cross multiply
    12,039,648.80x = 18,065,377.56 × 5,650,420.64
  4. Step 4: Simplify right side
    12,039,648.80x = 102,076,982,234,416.83
  5. Step 5: Solve for x
    x = 102,076,982,234,416.83/12,039,648.80
  6. Step 6: Final answer
    x = 8,478,401.98

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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.