Home / 21,811,539.40-30,102,163.86-13,112,528.20

Finding the Fourth Proportional to 21,811,539.40, 30,102,163.86 and 13,112,528.20

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Solution

The fourth proportional to 21,811,539.40, 30,102,163.86 and 13,112,528.20 is: 18,096,635.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,811,539.40 : 30,102,163.86 = 13,112,528.20 : x
  2. Step 2: Convert to fraction form
    21,811,539.40/30,102,163.86 = 13,112,528.20/x
  3. Step 3: Cross multiply
    21,811,539.40x = 30,102,163.86 × 13,112,528.20
  4. Step 4: Simplify right side
    21,811,539.40x = 394,715,472,495,270.81
  5. Step 5: Solve for x
    x = 394,715,472,495,270.81/21,811,539.40
  6. Step 6: Final answer
    x = 18,096,635.24

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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.