Home / 191,749,072.80-287,741,707.20-82,626,520.80

Finding the Fourth Proportional to 191,749,072.80, 287,741,707.20 and 82,626,520.80

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Solution

The fourth proportional to 191,749,072.80, 287,741,707.20 and 82,626,520.80 is: 123,990,670.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,749,072.80 : 287,741,707.20 = 82,626,520.80 : x
  2. Step 2: Convert to fraction form
    191,749,072.80/287,741,707.20 = 82,626,520.80/x
  3. Step 3: Cross multiply
    191,749,072.80x = 287,741,707.20 × 82,626,520.80
  4. Step 4: Simplify right side
    191,749,072.80x = 23,775,096,154,988,308
  5. Step 5: Solve for x
    x = 23,775,096,154,988,308/191,749,072.80
  6. Step 6: Final answer
    x = 123,990,670.76

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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.