Home / 553,043,865.34-763,200,840.36-298,725,220.78

Finding the Fourth Proportional to 553,043,865.34, 763,200,840.36 and 298,725,220.78

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Solution

The fourth proportional to 553,043,865.34, 763,200,840.36 and 298,725,220.78 is: 412,240,970.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,043,865.34 : 763,200,840.36 = 298,725,220.78 : x
  2. Step 2: Convert to fraction form
    553,043,865.34/763,200,840.36 = 298,725,220.78/x
  3. Step 3: Cross multiply
    553,043,865.34x = 763,200,840.36 × 298,725,220.78
  4. Step 4: Simplify right side
    553,043,865.34x = 227,987,339,536,022,528
  5. Step 5: Solve for x
    x = 227,987,339,536,022,528/553,043,865.34
  6. Step 6: Final answer
    x = 412,240,970.06

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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.