Home / 721,822,825.90-996,089,726.54-408,550,313.84

Finding the Fourth Proportional to 721,822,825.90, 996,089,726.54 and 408,550,313.84

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Solution

The fourth proportional to 721,822,825.90, 996,089,726.54 and 408,550,313.84 is: 563,784,845.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,822,825.90 : 996,089,726.54 = 408,550,313.84 : x
  2. Step 2: Convert to fraction form
    721,822,825.90/996,089,726.54 = 408,550,313.84/x
  3. Step 3: Cross multiply
    721,822,825.90x = 996,089,726.54 × 408,550,313.84
  4. Step 4: Simplify right side
    721,822,825.90x = 406,952,770,390,716,736
  5. Step 5: Solve for x
    x = 406,952,770,390,716,736/721,822,825.90
  6. Step 6: Final answer
    x = 563,784,845.52

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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.