Home / 5,480,428.80-8,220,643.20-2,488,612.80

Finding the Fourth Proportional to 5,480,428.80, 8,220,643.20 and 2,488,612.80

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Solution

The fourth proportional to 5,480,428.80, 8,220,643.20 and 2,488,612.80 is: 3,732,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480,428.80 : 8,220,643.20 = 2,488,612.80 : x
  2. Step 2: Convert to fraction form
    5,480,428.80/8,220,643.20 = 2,488,612.80/x
  3. Step 3: Cross multiply
    5,480,428.80x = 8,220,643.20 × 2,488,612.80
  4. Step 4: Simplify right side
    5,480,428.80x = 20,457,997,891,752.96
  5. Step 5: Solve for x
    x = 20,457,997,891,752.96/5,480,428.80
  6. Step 6: Final answer
    x = 3,732,919.20

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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.