Home / 7,771,621.40-11,657,432.10-5,504,139.80

Finding the Fourth Proportional to 7,771,621.40, 11,657,432.10 and 5,504,139.80

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Solution

The fourth proportional to 7,771,621.40, 11,657,432.10 and 5,504,139.80 is: 8,256,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,771,621.40 : 11,657,432.10 = 5,504,139.80 : x
  2. Step 2: Convert to fraction form
    7,771,621.40/11,657,432.10 = 5,504,139.80/x
  3. Step 3: Cross multiply
    7,771,621.40x = 11,657,432.10 × 5,504,139.80
  4. Step 4: Simplify right side
    7,771,621.40x = 64,164,135,987,407.58
  5. Step 5: Solve for x
    x = 64,164,135,987,407.58/7,771,621.40
  6. Step 6: Final answer
    x = 8,256,209.70

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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.