Home / 20,736,019.70-31,104,029.55-18,751,973.30

Finding the Fourth Proportional to 20,736,019.70, 31,104,029.55 and 18,751,973.30

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Solution

The fourth proportional to 20,736,019.70, 31,104,029.55 and 18,751,973.30 is: 28,127,959.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,019.70 : 31,104,029.55 = 18,751,973.30 : x
  2. Step 2: Convert to fraction form
    20,736,019.70/31,104,029.55 = 18,751,973.30/x
  3. Step 3: Cross multiply
    20,736,019.70x = 31,104,029.55 × 18,751,973.30
  4. Step 4: Simplify right side
    20,736,019.70x = 583,261,931,644,011
  5. Step 5: Solve for x
    x = 583,261,931,644,011/20,736,019.70
  6. Step 6: Final answer
    x = 28,127,959.95

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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.