Home / 20,318,289.60-30,477,434.40-8,193,561.60

Finding the Fourth Proportional to 20,318,289.60, 30,477,434.40 and 8,193,561.60

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Solution

The fourth proportional to 20,318,289.60, 30,477,434.40 and 8,193,561.60 is: 12,290,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318,289.60 : 30,477,434.40 = 8,193,561.60 : x
  2. Step 2: Convert to fraction form
    20,318,289.60/30,477,434.40 = 8,193,561.60/x
  3. Step 3: Cross multiply
    20,318,289.60x = 30,477,434.40 × 8,193,561.60
  4. Step 4: Simplify right side
    20,318,289.60x = 249,718,736,166,359.03
  5. Step 5: Solve for x
    x = 249,718,736,166,359.03/20,318,289.60
  6. Step 6: Final answer
    x = 12,290,342.40

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Double scale
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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.