Home / 18,808,640.40-28,212,960.60-4,625,216.40

Finding the Fourth Proportional to 18,808,640.40, 28,212,960.60 and 4,625,216.40

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Solution

The fourth proportional to 18,808,640.40, 28,212,960.60 and 4,625,216.40 is: 6,937,824.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,808,640.40 : 28,212,960.60 = 4,625,216.40 : x
  2. Step 2: Convert to fraction form
    18,808,640.40/28,212,960.60 = 4,625,216.40/x
  3. Step 3: Cross multiply
    18,808,640.40x = 28,212,960.60 × 4,625,216.40
  4. Step 4: Simplify right side
    18,808,640.40x = 130,491,048,059,673.86
  5. Step 5: Solve for x
    x = 130,491,048,059,673.86/18,808,640.40
  6. Step 6: Final answer
    x = 6,937,824.60

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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.