Home / 388,027,556.33-535,483,674.78-220,760,217.52

Finding the Fourth Proportional to 388,027,556.33, 535,483,674.78 and 220,760,217.52

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Solution

The fourth proportional to 388,027,556.33, 535,483,674.78 and 220,760,217.52 is: 304,652,312.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,027,556.33 : 535,483,674.78 = 220,760,217.52 : x
  2. Step 2: Convert to fraction form
    388,027,556.33/535,483,674.78 = 220,760,217.52/x
  3. Step 3: Cross multiply
    388,027,556.33x = 535,483,674.78 × 220,760,217.52
  4. Step 4: Simplify right side
    388,027,556.33x = 118,213,492,521,918,064
  5. Step 5: Solve for x
    x = 118,213,492,521,918,064/388,027,556.33
  6. Step 6: Final answer
    x = 304,652,312.94

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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.