Home / 12,302,036.40-18,453,054.60-7,179,207.60

Finding the Fourth Proportional to 12,302,036.40, 18,453,054.60 and 7,179,207.60

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Solution

The fourth proportional to 12,302,036.40, 18,453,054.60 and 7,179,207.60 is: 10,768,811.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,302,036.40 : 18,453,054.60 = 7,179,207.60 : x
  2. Step 2: Convert to fraction form
    12,302,036.40/18,453,054.60 = 7,179,207.60/x
  3. Step 3: Cross multiply
    12,302,036.40x = 18,453,054.60 × 7,179,207.60
  4. Step 4: Simplify right side
    12,302,036.40x = 132,478,309,827,534.97
  5. Step 5: Solve for x
    x = 132,478,309,827,534.97/12,302,036.40
  6. Step 6: Final answer
    x = 10,768,811.40

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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.