Home / 13,475,451.20-20,213,176.80-7,407,838.40

Finding the Fourth Proportional to 13,475,451.20, 20,213,176.80 and 7,407,838.40

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Solution

The fourth proportional to 13,475,451.20, 20,213,176.80 and 7,407,838.40 is: 11,111,757.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475,451.20 : 20,213,176.80 = 7,407,838.40 : x
  2. Step 2: Convert to fraction form
    13,475,451.20/20,213,176.80 = 7,407,838.40/x
  3. Step 3: Cross multiply
    13,475,451.20x = 20,213,176.80 × 7,407,838.40
  4. Step 4: Simplify right side
    13,475,451.20x = 149,735,947,285,029.12
  5. Step 5: Solve for x
    x = 149,735,947,285,029.12/13,475,451.20
  6. Step 6: Final answer
    x = 11,111,757.60

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Double scale
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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.