Home / 15,001,707.56-20,702,455.80-8,126,189.54

Finding the Fourth Proportional to 15,001,707.56, 20,702,455.80 and 8,126,189.54

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Solution

The fourth proportional to 15,001,707.56, 20,702,455.80 and 8,126,189.54 is: 11,214,195.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001,707.56 : 20,702,455.80 = 8,126,189.54 : x
  2. Step 2: Convert to fraction form
    15,001,707.56/20,702,455.80 = 8,126,189.54/x
  3. Step 3: Cross multiply
    15,001,707.56x = 20,702,455.80 × 8,126,189.54
  4. Step 4: Simplify right side
    15,001,707.56x = 168,232,079,774,272.34
  5. Step 5: Solve for x
    x = 168,232,079,774,272.34/15,001,707.56
  6. Step 6: Final answer
    x = 11,214,195.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.