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Finding the Fourth Proportional to 14,300,019.20, 21,492,019.20 and 12,452,441.60

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Solution

The fourth proportional to 14,300,019.20, 21,492,019.20 and 12,452,441.60 is: 18,715,227.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,300,019.20 : 21,492,019.20 = 12,452,441.60 : x
  2. Step 2: Convert to fraction form
    14,300,019.20/21,492,019.20 = 12,452,441.60/x
  3. Step 3: Cross multiply
    14,300,019.20x = 21,492,019.20 × 12,452,441.60
  4. Step 4: Simplify right side
    14,300,019.20x = 267,628,113,954,078.69
  5. Step 5: Solve for x
    x = 267,628,113,954,078.69/14,300,019.20
  6. Step 6: Final answer
    x = 18,715,227.60

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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.