Home / 998,839,468.64-1,378,388,313.60-552,803,697.92

Finding the Fourth Proportional to 998,839,468.64, 1,378,388,313.60 and 552,803,697.92

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Solution

The fourth proportional to 998,839,468.64, 1,378,388,313.60 and 552,803,697.92 is: 762,863,483.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,839,468.64 : 1,378,388,313.60 = 552,803,697.92 : x
  2. Step 2: Convert to fraction form
    998,839,468.64/1,378,388,313.60 = 552,803,697.92/x
  3. Step 3: Cross multiply
    998,839,468.64x = 1,378,388,313.60 × 552,803,697.92
  4. Step 4: Simplify right side
    998,839,468.64x = 761,978,156,927,792,512
  5. Step 5: Solve for x
    x = 761,978,156,927,792,512/998,839,468.64
  6. Step 6: Final answer
    x = 762,863,483.92

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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.