Home / 315,028,216.20-471,692,018.70-247,003,768.20

Finding the Fourth Proportional to 315,028,216.20, 471,692,018.70 and 247,003,768.20

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Solution

The fourth proportional to 315,028,216.20, 471,692,018.70 and 247,003,768.20 is: 369,838,954.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,028,216.20 : 471,692,018.70 = 247,003,768.20 : x
  2. Step 2: Convert to fraction form
    315,028,216.20/471,692,018.70 = 247,003,768.20/x
  3. Step 3: Cross multiply
    315,028,216.20x = 471,692,018.70 × 247,003,768.20
  4. Step 4: Simplify right side
    315,028,216.20x = 116,509,706,048,764,864
  5. Step 5: Solve for x
    x = 116,509,706,048,764,864/315,028,216.20
  6. Step 6: Final answer
    x = 369,838,954.28

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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.