Home / 312,905,111.80-469,525,629.30-131,170,660.60

Finding the Fourth Proportional to 312,905,111.80, 469,525,629.30 and 131,170,660.60

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Solution

The fourth proportional to 312,905,111.80, 469,525,629.30 and 131,170,660.60 is: 196,826,400.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,905,111.80 : 469,525,629.30 = 131,170,660.60 : x
  2. Step 2: Convert to fraction form
    312,905,111.80/469,525,629.30 = 131,170,660.60/x
  3. Step 3: Cross multiply
    312,905,111.80x = 469,525,629.30 × 131,170,660.60
  4. Step 4: Simplify right side
    312,905,111.80x = 61,587,986,963,911,712
  5. Step 5: Solve for x
    x = 61,587,986,963,911,712/312,905,111.80
  6. Step 6: Final answer
    x = 196,826,400.85

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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.