Home / 10,778,821.20-16,168,231.80-4,385,782.80

Finding the Fourth Proportional to 10,778,821.20, 16,168,231.80 and 4,385,782.80

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Solution

The fourth proportional to 10,778,821.20, 16,168,231.80 and 4,385,782.80 is: 6,578,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778,821.20 : 16,168,231.80 = 4,385,782.80 : x
  2. Step 2: Convert to fraction form
    10,778,821.20/16,168,231.80 = 4,385,782.80/x
  3. Step 3: Cross multiply
    10,778,821.20x = 16,168,231.80 × 4,385,782.80
  4. Step 4: Simplify right side
    10,778,821.20x = 70,910,352,934,853.05
  5. Step 5: Solve for x
    x = 70,910,352,934,853.05/10,778,821.20
  6. Step 6: Final answer
    x = 6,578,674.20

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1.5x scale

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.