Home / 538,860,825.05-808,287,845.81-289,983,315.22

Finding the Fourth Proportional to 538,860,825.05, 808,287,845.81 and 289,983,315.22

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Solution

The fourth proportional to 538,860,825.05, 808,287,845.81 and 289,983,315.22 is: 434,973,147.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,860,825.05 : 808,287,845.81 = 289,983,315.22 : x
  2. Step 2: Convert to fraction form
    538,860,825.05/808,287,845.81 = 289,983,315.22/x
  3. Step 3: Cross multiply
    538,860,825.05x = 808,287,845.81 × 289,983,315.22
  4. Step 4: Simplify right side
    538,860,825.05x = 234,389,989,179,392,992
  5. Step 5: Solve for x
    x = 234,389,989,179,392,992/538,860,825.05
  6. Step 6: Final answer
    x = 434,973,147.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.