Home / 256,562,812.20-384,396,320.70-220,731,004.20

Finding the Fourth Proportional to 256,562,812.20, 384,396,320.70 and 220,731,004.20

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Solution

The fourth proportional to 256,562,812.20, 384,396,320.70 and 220,731,004.20 is: 330,711,162.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,562,812.20 : 384,396,320.70 = 220,731,004.20 : x
  2. Step 2: Convert to fraction form
    256,562,812.20/384,396,320.70 = 220,731,004.20/x
  3. Step 3: Cross multiply
    256,562,812.20x = 384,396,320.70 × 220,731,004.20
  4. Step 4: Simplify right side
    256,562,812.20x = 84,848,185,878,896,240
  5. Step 5: Solve for x
    x = 84,848,185,878,896,240/256,562,812.20
  6. Step 6: Final answer
    x = 330,711,162.51

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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.