Home / 5,430,190.40-8,145,285.60-5,305,774.40

Finding the Fourth Proportional to 5,430,190.40, 8,145,285.60 and 5,305,774.40

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Solution

The fourth proportional to 5,430,190.40, 8,145,285.60 and 5,305,774.40 is: 7,958,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430,190.40 : 8,145,285.60 = 5,305,774.40 : x
  2. Step 2: Convert to fraction form
    5,430,190.40/8,145,285.60 = 5,305,774.40/x
  3. Step 3: Cross multiply
    5,430,190.40x = 8,145,285.60 × 5,305,774.40
  4. Step 4: Simplify right side
    5,430,190.40x = 43,217,047,817,168.64
  5. Step 5: Solve for x
    x = 43,217,047,817,168.64/5,430,190.40
  6. Step 6: Final answer
    x = 7,958,661.60

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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.