Home / 13,110,489.38-18,092,079.06-7,230,120.54

Finding the Fourth Proportional to 13,110,489.38, 18,092,079.06 and 7,230,120.54

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Solution

The fourth proportional to 13,110,489.38, 18,092,079.06 and 7,230,120.54 is: 9,977,347.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110,489.38 : 18,092,079.06 = 7,230,120.54 : x
  2. Step 2: Convert to fraction form
    13,110,489.38/18,092,079.06 = 7,230,120.54/x
  3. Step 3: Cross multiply
    13,110,489.38x = 18,092,079.06 × 7,230,120.54
  4. Step 4: Simplify right side
    13,110,489.38x = 130,807,912,423,009.89
  5. Step 5: Solve for x
    x = 130,807,912,423,009.89/13,110,489.38
  6. Step 6: Final answer
    x = 9,977,347.80

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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.