Home / 5,480,885.80-8,221,328.70-5,219,612.20

Finding the Fourth Proportional to 5,480,885.80, 8,221,328.70 and 5,219,612.20

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Solution

The fourth proportional to 5,480,885.80, 8,221,328.70 and 5,219,612.20 is: 7,829,418.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480,885.80 : 8,221,328.70 = 5,219,612.20 : x
  2. Step 2: Convert to fraction form
    5,480,885.80/8,221,328.70 = 5,219,612.20/x
  3. Step 3: Cross multiply
    5,480,885.80x = 8,221,328.70 × 5,219,612.20
  4. Step 4: Simplify right side
    5,480,885.80x = 42,912,147,582,730.14
  5. Step 5: Solve for x
    x = 42,912,147,582,730.14/5,480,885.80
  6. Step 6: Final answer
    x = 7,829,418.30

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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.