Home / 7,430,280.40-11,145,420.60-5,404,243.60

Finding the Fourth Proportional to 7,430,280.40, 11,145,420.60 and 5,404,243.60

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Solution

The fourth proportional to 7,430,280.40, 11,145,420.60 and 5,404,243.60 is: 8,106,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,430,280.40 : 11,145,420.60 = 5,404,243.60 : x
  2. Step 2: Convert to fraction form
    7,430,280.40/11,145,420.60 = 5,404,243.60/x
  3. Step 3: Cross multiply
    7,430,280.40x = 11,145,420.60 × 5,404,243.60
  4. Step 4: Simplify right side
    7,430,280.40x = 60,232,567,946,858.16
  5. Step 5: Solve for x
    x = 60,232,567,946,858.16/7,430,280.40
  6. Step 6: Final answer
    x = 8,106,365.40

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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.