Home / 389,423,822.72-537,383,584.86-213,177,722.54

Finding the Fourth Proportional to 389,423,822.72, 537,383,584.86 and 213,177,722.54

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Solution

The fourth proportional to 389,423,822.72, 537,383,584.86 and 213,177,722.54 is: 294,173,602.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,423,822.72 : 537,383,584.86 = 213,177,722.54 : x
  2. Step 2: Convert to fraction form
    389,423,822.72/537,383,584.86 = 213,177,722.54/x
  3. Step 3: Cross multiply
    389,423,822.72x = 537,383,584.86 × 213,177,722.54
  4. Step 4: Simplify right side
    389,423,822.72x = 114,558,208,750,835,616
  5. Step 5: Solve for x
    x = 114,558,208,750,835,616/389,423,822.72
  6. Step 6: Final answer
    x = 294,173,602.30

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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.