Home / 312,905,121.30-469,525,643.55-131,170,670.10

Finding the Fourth Proportional to 312,905,121.30, 469,525,643.55 and 131,170,670.10

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Solution

The fourth proportional to 312,905,121.30, 469,525,643.55 and 131,170,670.10 is: 196,826,415.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,905,121.30 : 469,525,643.55 = 131,170,670.10 : x
  2. Step 2: Convert to fraction form
    312,905,121.30/469,525,643.55 = 131,170,670.10/x
  3. Step 3: Cross multiply
    312,905,121.30x = 469,525,643.55 × 131,170,670.10
  4. Step 4: Simplify right side
    312,905,121.30x = 61,587,993,293,587,240
  5. Step 5: Solve for x
    x = 61,587,993,293,587,240/312,905,121.30
  6. Step 6: Final answer
    x = 196,826,415.11

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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.