Home / 20,359,548.60-30,539,322.90-12,281,645.40

Finding the Fourth Proportional to 20,359,548.60, 30,539,322.90 and 12,281,645.40

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Solution

The fourth proportional to 20,359,548.60, 30,539,322.90 and 12,281,645.40 is: 18,422,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,359,548.60 : 30,539,322.90 = 12,281,645.40 : x
  2. Step 2: Convert to fraction form
    20,359,548.60/30,539,322.90 = 12,281,645.40/x
  3. Step 3: Cross multiply
    20,359,548.60x = 30,539,322.90 × 12,281,645.40
  4. Step 4: Simplify right side
    20,359,548.60x = 375,073,134,613,899.62
  5. Step 5: Solve for x
    x = 375,073,134,613,899.62/20,359,548.60
  6. Step 6: Final answer
    x = 18,422,468.10

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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.