Home / 18,903,358.30-28,355,037.45-8,806,999.90

Finding the Fourth Proportional to 18,903,358.30, 28,355,037.45 and 8,806,999.90

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Solution

The fourth proportional to 18,903,358.30, 28,355,037.45 and 8,806,999.90 is: 13,210,499.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903,358.30 : 28,355,037.45 = 8,806,999.90 : x
  2. Step 2: Convert to fraction form
    18,903,358.30/28,355,037.45 = 8,806,999.90/x
  3. Step 3: Cross multiply
    18,903,358.30x = 28,355,037.45 × 8,806,999.90
  4. Step 4: Simplify right side
    18,903,358.30x = 249,722,811,986,646.25
  5. Step 5: Solve for x
    x = 249,722,811,986,646.25/18,903,358.30
  6. Step 6: Final answer
    x = 13,210,499.85

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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.