Home / 312,901,465.80-469,520,160.30-131,167,014.60

Finding the Fourth Proportional to 312,901,465.80, 469,520,160.30 and 131,167,014.60

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Solution

The fourth proportional to 312,901,465.80, 469,520,160.30 and 131,167,014.60 is: 196,820,930.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,901,465.80 : 469,520,160.30 = 131,167,014.60 : x
  2. Step 2: Convert to fraction form
    312,901,465.80/469,520,160.30 = 131,167,014.60/x
  3. Step 3: Cross multiply
    312,901,465.80x = 469,520,160.30 × 131,167,014.60
  4. Step 4: Simplify right side
    312,901,465.80x = 61,585,557,721,064,440
  5. Step 5: Solve for x
    x = 61,585,557,721,064,440/312,901,465.80
  6. Step 6: Final answer
    x = 196,820,930.72

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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.