Home / 553,043,856.71-763,200,828.45-298,725,212.15

Finding the Fourth Proportional to 553,043,856.71, 763,200,828.45 and 298,725,212.15

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Solution

The fourth proportional to 553,043,856.71, 763,200,828.45 and 298,725,212.15 is: 412,240,958.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,043,856.71 : 763,200,828.45 = 298,725,212.15 : x
  2. Step 2: Convert to fraction form
    553,043,856.71/763,200,828.45 = 298,725,212.15/x
  3. Step 3: Cross multiply
    553,043,856.71x = 763,200,828.45 × 298,725,212.15
  4. Step 4: Simplify right side
    553,043,856.71x = 227,987,329,393,690,016
  5. Step 5: Solve for x
    x = 227,987,329,393,690,016/553,043,856.71
  6. Step 6: Final answer
    x = 412,240,958.16

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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.