Home / 20,474,313.60-30,722,068.80-8,352,662.40

Finding the Fourth Proportional to 20,474,313.60, 30,722,068.80 and 8,352,662.40

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Solution

The fourth proportional to 20,474,313.60, 30,722,068.80 and 8,352,662.40 is: 12,533,317.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474,313.60 : 30,722,068.80 = 8,352,662.40 : x
  2. Step 2: Convert to fraction form
    20,474,313.60/30,722,068.80 = 8,352,662.40/x
  3. Step 3: Cross multiply
    20,474,313.60x = 30,722,068.80 × 8,352,662.40
  4. Step 4: Simplify right side
    20,474,313.60x = 256,611,068,915,973.12
  5. Step 5: Solve for x
    x = 256,611,068,915,973.12/20,474,313.60
  6. Step 6: Final answer
    x = 12,533,317.30

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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.