Home / 406,723,607.10-561,278,939.47-221,084,622.79

Finding the Fourth Proportional to 406,723,607.10, 561,278,939.47 and 221,084,622.79

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Solution

The fourth proportional to 406,723,607.10, 561,278,939.47 and 221,084,622.79 is: 305,096,976.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,723,607.10 : 561,278,939.47 = 221,084,622.79 : x
  2. Step 2: Convert to fraction form
    406,723,607.10/561,278,939.47 = 221,084,622.79/x
  3. Step 3: Cross multiply
    406,723,607.10x = 561,278,939.47 × 221,084,622.79
  4. Step 4: Simplify right side
    406,723,607.10x = 124,090,142,611,978,336
  5. Step 5: Solve for x
    x = 124,090,142,611,978,336/406,723,607.10
  6. Step 6: Final answer
    x = 305,096,976.04

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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.