Home / 388,121,663.88-535,654,863-220,898,583

Finding the Fourth Proportional to 388,121,663.88, 535,654,863 and 220,898,583

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Solution

The fourth proportional to 388,121,663.88, 535,654,863 and 220,898,583 is: 304,866,775.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,121,663.88 : 535,654,863 = 220,898,583 : x
  2. Step 2: Convert to fraction form
    388,121,663.88/535,654,863 = 220,898,583/x
  3. Step 3: Cross multiply
    388,121,663.88x = 535,654,863 × 220,898,583
  4. Step 4: Simplify right side
    388,121,663.88x = 118,325,400,213,759,136
  5. Step 5: Solve for x
    x = 118,325,400,213,759,136/388,121,663.88
  6. Step 6: Final answer
    x = 304,866,775.62

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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.