Home / 695,319,243.20-1,042,978,864.80-210,645,051.20

Finding the Fourth Proportional to 695,319,243.20, 1,042,978,864.80 and 210,645,051.20

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Solution

The fourth proportional to 695,319,243.20, 1,042,978,864.80 and 210,645,051.20 is: 315,967,576.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,319,243.20 : 1,042,978,864.80 = 210,645,051.20 : x
  2. Step 2: Convert to fraction form
    695,319,243.20/1,042,978,864.80 = 210,645,051.20/x
  3. Step 3: Cross multiply
    695,319,243.20x = 1,042,978,864.80 × 210,645,051.20
  4. Step 4: Simplify right side
    695,319,243.20x = 219,698,336,376,313,856
  5. Step 5: Solve for x
    x = 219,698,336,376,313,856/695,319,243.20
  6. Step 6: Final answer
    x = 315,967,576.80

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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.