Home / 660,056,821.40-990,085,415.56-245,479,474.96

Finding the Fourth Proportional to 660,056,821.40, 990,085,415.56 and 245,479,474.96

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Solution

The fourth proportional to 660,056,821.40, 990,085,415.56 and 245,479,474.96 is: 368,219,280.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,056,821.40 : 990,085,415.56 = 245,479,474.96 : x
  2. Step 2: Convert to fraction form
    660,056,821.40/990,085,415.56 = 245,479,474.96/x
  3. Step 3: Cross multiply
    660,056,821.40x = 990,085,415.56 × 245,479,474.96
  4. Step 4: Simplify right side
    660,056,821.40x = 243,045,647,977,222,208
  5. Step 5: Solve for x
    x = 243,045,647,977,222,208/660,056,821.40
  6. Step 6: Final answer
    x = 368,219,280.67

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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.