Home / 18,903,605.70-28,355,408.55-9,323,573.70

Finding the Fourth Proportional to 18,903,605.70, 28,355,408.55 and 9,323,573.70

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Solution

The fourth proportional to 18,903,605.70, 28,355,408.55 and 9,323,573.70 is: 13,985,360.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903,605.70 : 28,355,408.55 = 9,323,573.70 : x
  2. Step 2: Convert to fraction form
    18,903,605.70/28,355,408.55 = 9,323,573.70/x
  3. Step 3: Cross multiply
    18,903,605.70x = 28,355,408.55 × 9,323,573.70
  4. Step 4: Simplify right side
    18,903,605.70x = 264,373,741,409,535.12
  5. Step 5: Solve for x
    x = 264,373,741,409,535.12/18,903,605.70
  6. Step 6: Final answer
    x = 13,985,360.55

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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.