Home / 720,375,485.04-994,008,233.88-406,995,356.16

Finding the Fourth Proportional to 720,375,485.04, 994,008,233.88 and 406,995,356.16

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Solution

The fourth proportional to 720,375,485.04, 994,008,233.88 and 406,995,356.16 is: 561,591,480.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,375,485.04 : 994,008,233.88 = 406,995,356.16 : x
  2. Step 2: Convert to fraction form
    720,375,485.04/994,008,233.88 = 406,995,356.16/x
  3. Step 3: Cross multiply
    720,375,485.04x = 994,008,233.88 × 406,995,356.16
  4. Step 4: Simplify right side
    720,375,485.04x = 404,556,735,173,963,200
  5. Step 5: Solve for x
    x = 404,556,735,173,963,200/720,375,485.04
  6. Step 6: Final answer
    x = 561,591,480.52

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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.