Home / 384,898,320.64-530,645,826.24-305,775,911.68

Finding the Fourth Proportional to 384,898,320.64, 530,645,826.24 and 305,775,911.68

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Solution

The fourth proportional to 384,898,320.64, 530,645,826.24 and 305,775,911.68 is: 421,562,533.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,898,320.64 : 530,645,826.24 = 305,775,911.68 : x
  2. Step 2: Convert to fraction form
    384,898,320.64/530,645,826.24 = 305,775,911.68/x
  3. Step 3: Cross multiply
    384,898,320.64x = 530,645,826.24 × 305,775,911.68
  4. Step 4: Simplify right side
    384,898,320.64x = 162,258,711,297,722,880
  5. Step 5: Solve for x
    x = 162,258,711,297,722,880/384,898,320.64
  6. Step 6: Final answer
    x = 421,562,533.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.