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Finding the Fourth Proportional to 263,888,351.80, 395,832,527.70 and 142,955,999.80

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Solution

The fourth proportional to 263,888,351.80, 395,832,527.70 and 142,955,999.80 is: 214,433,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,888,351.80 : 395,832,527.70 = 142,955,999.80 : x
  2. Step 2: Convert to fraction form
    263,888,351.80/395,832,527.70 = 142,955,999.80/x
  3. Step 3: Cross multiply
    263,888,351.80x = 395,832,527.70 × 142,955,999.80
  4. Step 4: Simplify right side
    263,888,351.80x = 56,586,634,750,714,696
  5. Step 5: Solve for x
    x = 56,586,634,750,714,696/263,888,351.80
  6. Step 6: Final answer
    x = 214,433,999.70

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1.5x scale

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.