Home / 315,028,218.20-471,692,021.70-247,003,770.20

Finding the Fourth Proportional to 315,028,218.20, 471,692,021.70 and 247,003,770.20

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Solution

The fourth proportional to 315,028,218.20, 471,692,021.70 and 247,003,770.20 is: 369,838,957.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,028,218.20 : 471,692,021.70 = 247,003,770.20 : x
  2. Step 2: Convert to fraction form
    315,028,218.20/471,692,021.70 = 247,003,770.20/x
  3. Step 3: Cross multiply
    315,028,218.20x = 471,692,021.70 × 247,003,770.20
  4. Step 4: Simplify right side
    315,028,218.20x = 116,509,707,733,160,208
  5. Step 5: Solve for x
    x = 116,509,707,733,160,208/315,028,218.20
  6. Step 6: Final answer
    x = 369,838,957.28

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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.