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Finding the Fourth Proportional to 18,281,337.60, 27,429,004.80 and 17,994,403.20

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Solution

The fourth proportional to 18,281,337.60, 27,429,004.80 and 17,994,403.20 is: 26,998,493.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281,337.60 : 27,429,004.80 = 17,994,403.20 : x
  2. Step 2: Convert to fraction form
    18,281,337.60/27,429,004.80 = 17,994,403.20/x
  3. Step 3: Cross multiply
    18,281,337.60x = 27,429,004.80 × 17,994,403.20
  4. Step 4: Simplify right side
    18,281,337.60x = 493,568,571,745,935.38
  5. Step 5: Solve for x
    x = 493,568,571,745,935.38/18,281,337.60
  6. Step 6: Final answer
    x = 26,998,493.36

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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.