Home / 12,355,999.20-18,533,998.80-3,838,946.40

Finding the Fourth Proportional to 12,355,999.20, 18,533,998.80 and 3,838,946.40

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Solution

The fourth proportional to 12,355,999.20, 18,533,998.80 and 3,838,946.40 is: 5,758,419.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355,999.20 : 18,533,998.80 = 3,838,946.40 : x
  2. Step 2: Convert to fraction form
    12,355,999.20/18,533,998.80 = 3,838,946.40/x
  3. Step 3: Cross multiply
    12,355,999.20x = 18,533,998.80 × 3,838,946.40
  4. Step 4: Simplify right side
    12,355,999.20x = 71,151,027,970,864.33
  5. Step 5: Solve for x
    x = 71,151,027,970,864.33/12,355,999.20
  6. Step 6: Final answer
    x = 5,758,419.60

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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.