Home / 6,626,221.20-9,939,331.80-5,429,494.80

Finding the Fourth Proportional to 6,626,221.20, 9,939,331.80 and 5,429,494.80

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Solution

The fourth proportional to 6,626,221.20, 9,939,331.80 and 5,429,494.80 is: 8,144,242.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,626,221.20 : 9,939,331.80 = 5,429,494.80 : x
  2. Step 2: Convert to fraction form
    6,626,221.20/9,939,331.80 = 5,429,494.80/x
  3. Step 3: Cross multiply
    6,626,221.20x = 9,939,331.80 × 5,429,494.80
  4. Step 4: Simplify right side
    6,626,221.20x = 53,965,550,323,574.64
  5. Step 5: Solve for x
    x = 53,965,550,323,574.64/6,626,221.20
  6. Step 6: Final answer
    x = 8,144,242.20

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Similar ratio
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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.