Home / 20,102,270.21-30,077,313.44-11,909,311.00

Finding the Fourth Proportional to 20,102,270.21, 30,077,313.44 and 11,909,311.00

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Solution

The fourth proportional to 20,102,270.21, 30,077,313.44 and 11,909,311.00 is: 17,818,886.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102,270.21 : 30,077,313.44 = 11,909,311.00 : x
  2. Step 2: Convert to fraction form
    20,102,270.21/30,077,313.44 = 11,909,311.00/x
  3. Step 3: Cross multiply
    20,102,270.21x = 30,077,313.44 × 11,909,311.00
  4. Step 4: Simplify right side
    20,102,270.21x = 358,200,079,651,053.25
  5. Step 5: Solve for x
    x = 358,200,079,651,053.25/20,102,270.21
  6. Step 6: Final answer
    x = 17,818,886.91

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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.