Home / 12,355,790.40-18,533,685.60-6,687,086.40

Finding the Fourth Proportional to 12,355,790.40, 18,533,685.60 and 6,687,086.40

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Solution

The fourth proportional to 12,355,790.40, 18,533,685.60 and 6,687,086.40 is: 10,030,629.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355,790.40 : 18,533,685.60 = 6,687,086.40 : x
  2. Step 2: Convert to fraction form
    12,355,790.40/18,533,685.60 = 6,687,086.40/x
  3. Step 3: Cross multiply
    12,355,790.40x = 18,533,685.60 × 6,687,086.40
  4. Step 4: Simplify right side
    12,355,790.40x = 123,936,356,917,635.86
  5. Step 5: Solve for x
    x = 123,936,356,917,635.86/12,355,790.40
  6. Step 6: Final answer
    x = 10,030,629.60

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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.