Home / 630,314,007.84-945,505,494.20-261,886,211.28

Finding the Fourth Proportional to 630,314,007.84, 945,505,494.20 and 261,886,211.28

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Solution

The fourth proportional to 630,314,007.84, 945,505,494.20 and 261,886,211.28 is: 392,843,643.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,314,007.84 : 945,505,494.20 = 261,886,211.28 : x
  2. Step 2: Convert to fraction form
    630,314,007.84/945,505,494.20 = 261,886,211.28/x
  3. Step 3: Cross multiply
    630,314,007.84x = 945,505,494.20 × 261,886,211.28
  4. Step 4: Simplify right side
    630,314,007.84x = 247,614,851,620,462,016
  5. Step 5: Solve for x
    x = 247,614,851,620,462,016/630,314,007.84
  6. Step 6: Final answer
    x = 392,843,643.87

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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.