Home / 20,221,462.90-30,332,194.35-19,185,152.95

Finding the Fourth Proportional to 20,221,462.90, 30,332,194.35 and 19,185,152.95

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Solution

The fourth proportional to 20,221,462.90, 30,332,194.35 and 19,185,152.95 is: 28,777,729.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221,462.90 : 30,332,194.35 = 19,185,152.95 : x
  2. Step 2: Convert to fraction form
    20,221,462.90/30,332,194.35 = 19,185,152.95/x
  3. Step 3: Cross multiply
    20,221,462.90x = 30,332,194.35 × 19,185,152.95
  4. Step 4: Simplify right side
    20,221,462.90x = 581,927,787,913,875.88
  5. Step 5: Solve for x
    x = 581,927,787,913,875.88/20,221,462.90
  6. Step 6: Final answer
    x = 28,777,729.43

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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.