Home / 18,884,880.60-28,327,320.90-5,238,000.60

Finding the Fourth Proportional to 18,884,880.60, 28,327,320.90 and 5,238,000.60

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Solution

The fourth proportional to 18,884,880.60, 28,327,320.90 and 5,238,000.60 is: 7,857,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,884,880.60 : 28,327,320.90 = 5,238,000.60 : x
  2. Step 2: Convert to fraction form
    18,884,880.60/28,327,320.90 = 5,238,000.60/x
  3. Step 3: Cross multiply
    18,884,880.60x = 28,327,320.90 × 5,238,000.60
  4. Step 4: Simplify right side
    18,884,880.60x = 148,378,523,870,592.53
  5. Step 5: Solve for x
    x = 148,378,523,870,592.53/18,884,880.60
  6. Step 6: Final answer
    x = 7,857,000.90

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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.