Home / 20,221,477.15-30,332,215.73-19,185,167.20

Finding the Fourth Proportional to 20,221,477.15, 30,332,215.73 and 19,185,167.20

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Solution

The fourth proportional to 20,221,477.15, 30,332,215.73 and 19,185,167.20 is: 28,777,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221,477.15 : 30,332,215.73 = 19,185,167.20 : x
  2. Step 2: Convert to fraction form
    20,221,477.15/30,332,215.73 = 19,185,167.20/x
  3. Step 3: Cross multiply
    20,221,477.15x = 30,332,215.73 × 19,185,167.20
  4. Step 4: Simplify right side
    20,221,477.15x = 581,928,630,326,520
  5. Step 5: Solve for x
    x = 581,928,630,326,520/20,221,477.15
  6. Step 6: Final answer
    x = 28,777,750.80

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1.5x scale

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.