Home / 20,736,110.30-31,104,165.46-18,681,205.10

Finding the Fourth Proportional to 20,736,110.30, 31,104,165.46 and 18,681,205.10

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Solution

The fourth proportional to 20,736,110.30, 31,104,165.46 and 18,681,205.10 is: 28,021,807.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,110.30 : 31,104,165.46 = 18,681,205.10 : x
  2. Step 2: Convert to fraction form
    20,736,110.30/31,104,165.46 = 18,681,205.10/x
  3. Step 3: Cross multiply
    20,736,110.30x = 31,104,165.46 × 18,681,205.10
  4. Step 4: Simplify right side
    20,736,110.30x = 581,063,294,422,595.88
  5. Step 5: Solve for x
    x = 581,063,294,422,595.88/20,736,110.30
  6. Step 6: Final answer
    x = 28,021,807.66

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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.