Home / 2,688,131.20-4,032,196.80-2,184,246.40

Finding the Fourth Proportional to 2,688,131.20, 4,032,196.80 and 2,184,246.40

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Solution

The fourth proportional to 2,688,131.20, 4,032,196.80 and 2,184,246.40 is: 3,276,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,131.20 : 4,032,196.80 = 2,184,246.40 : x
  2. Step 2: Convert to fraction form
    2,688,131.20/4,032,196.80 = 2,184,246.40/x
  3. Step 3: Cross multiply
    2,688,131.20x = 4,032,196.80 × 2,184,246.40
  4. Step 4: Simplify right side
    2,688,131.20x = 8,807,311,344,491.52
  5. Step 5: Solve for x
    x = 8,807,311,344,491.52/2,688,131.20
  6. Step 6: Final answer
    x = 3,276,369.60

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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.