Home / 859,626,333.27-1,186,288,357.23-488,368,736.55

Finding the Fourth Proportional to 859,626,333.27, 1,186,288,357.23 and 488,368,736.55

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Solution

The fourth proportional to 859,626,333.27, 1,186,288,357.23 and 488,368,736.55 is: 673,951,138.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,626,333.27 : 1,186,288,357.23 = 488,368,736.55 : x
  2. Step 2: Convert to fraction form
    859,626,333.27/1,186,288,357.23 = 488,368,736.55/x
  3. Step 3: Cross multiply
    859,626,333.27x = 1,186,288,357.23 × 488,368,736.55
  4. Step 4: Simplify right side
    859,626,333.27x = 579,346,146,204,390,144
  5. Step 5: Solve for x
    x = 579,346,146,204,390,144/859,626,333.27
  6. Step 6: Final answer
    x = 673,951,138.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.