Home / 18,190,280.40-27,285,420.60-5,409,124.35

Finding the Fourth Proportional to 18,190,280.40, 27,285,420.60 and 5,409,124.35

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Solution

The fourth proportional to 18,190,280.40, 27,285,420.60 and 5,409,124.35 is: 8,113,686.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,190,280.40 : 27,285,420.60 = 5,409,124.35 : x
  2. Step 2: Convert to fraction form
    18,190,280.40/27,285,420.60 = 5,409,124.35/x
  3. Step 3: Cross multiply
    18,190,280.40x = 27,285,420.60 × 5,409,124.35
  4. Step 4: Simplify right side
    18,190,280.40x = 147,590,232,967,451.59
  5. Step 5: Solve for x
    x = 147,590,232,967,451.59/18,190,280.40
  6. Step 6: Final answer
    x = 8,113,686.53

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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.