Home / 20,221,468.65-30,332,202.98-19,185,158.70

Finding the Fourth Proportional to 20,221,468.65, 30,332,202.98 and 19,185,158.70

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Solution

The fourth proportional to 20,221,468.65, 30,332,202.98 and 19,185,158.70 is: 28,777,738.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221,468.65 : 30,332,202.98 = 19,185,158.70 : x
  2. Step 2: Convert to fraction form
    20,221,468.65/30,332,202.98 = 19,185,158.70/x
  3. Step 3: Cross multiply
    20,221,468.65x = 30,332,202.98 × 19,185,158.70
  4. Step 4: Simplify right side
    20,221,468.65x = 581,928,127,795,987.12
  5. Step 5: Solve for x
    x = 581,928,127,795,987.12/20,221,468.65
  6. Step 6: Final answer
    x = 28,777,738.05

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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.