Home / 465,196,836.30-641,975,879.79-256,360,471.98

Finding the Fourth Proportional to 465,196,836.30, 641,975,879.79 and 256,360,471.98

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Solution

The fourth proportional to 465,196,836.30, 641,975,879.79 and 256,360,471.98 is: 353,779,791.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,196,836.30 : 641,975,879.79 = 256,360,471.98 : x
  2. Step 2: Convert to fraction form
    465,196,836.30/641,975,879.79 = 256,360,471.98/x
  3. Step 3: Cross multiply
    465,196,836.30x = 641,975,879.79 × 256,360,471.98
  4. Step 4: Simplify right side
    465,196,836.30x = 164,577,239,542,740,128
  5. Step 5: Solve for x
    x = 164,577,239,542,740,128/465,196,836.30
  6. Step 6: Final answer
    x = 353,779,791.05

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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.