Home / 388,509,027,200.64-536,106,477,760.60-214,890,429,911.21

Finding the Fourth Proportional to 388,509,027,200.64, 536,106,477,760.60 and 214,890,429,911.21

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Solution

The fourth proportional to 388,509,027,200.64, 536,106,477,760.60 and 214,890,429,911.21 is: 296,528,892,299.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,509,027,200.64 : 536,106,477,760.60 = 214,890,429,911.21 : x
  2. Step 2: Convert to fraction form
    388,509,027,200.64/536,106,477,760.60 = 214,890,429,911.21/x
  3. Step 3: Cross multiply
    388,509,027,200.64x = 536,106,477,760.60 × 214,890,429,911.21
  4. Step 4: Simplify right side
    388,509,027,200.64x = 115,204,151,484,159,874,826,240
  5. Step 5: Solve for x
    x = 115,204,151,484,159,874,826,240/388,509,027,200.64
  6. Step 6: Final answer
    x = 296,528,892,299.49

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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.