Home / 12,355,816.90-18,533,725.35-6,687,112.90

Finding the Fourth Proportional to 12,355,816.90, 18,533,725.35 and 6,687,112.90

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Solution

The fourth proportional to 12,355,816.90, 18,533,725.35 and 6,687,112.90 is: 10,030,669.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355,816.90 : 18,533,725.35 = 6,687,112.90 : x
  2. Step 2: Convert to fraction form
    12,355,816.90/18,533,725.35 = 6,687,112.90/x
  3. Step 3: Cross multiply
    12,355,816.90x = 18,533,725.35 × 6,687,112.90
  4. Step 4: Simplify right side
    12,355,816.90x = 123,937,113,873,042.03
  5. Step 5: Solve for x
    x = 123,937,113,873,042.03/12,355,816.90
  6. Step 6: Final answer
    x = 10,030,669.35

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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.