Home / 852,111,186.20-1,278,166,779.30-438,862,664.60

Finding the Fourth Proportional to 852,111,186.20, 1,278,166,779.30 and 438,862,664.60

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Solution

The fourth proportional to 852,111,186.20, 1,278,166,779.30 and 438,862,664.60 is: 658,293,996.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,111,186.20 : 1,278,166,779.30 = 438,862,664.60 : x
  2. Step 2: Convert to fraction form
    852,111,186.20/1,278,166,779.30 = 438,862,664.60/x
  3. Step 3: Cross multiply
    852,111,186.20x = 1,278,166,779.30 × 438,862,664.60
  4. Step 4: Simplify right side
    852,111,186.20x = 560,939,678,566,798,144
  5. Step 5: Solve for x
    x = 560,939,678,566,798,144/852,111,186.20
  6. Step 6: Final answer
    x = 658,293,996.90

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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.