Home / 838,200,666.30-1,257,300,999.45-263,771,994.30

Finding the Fourth Proportional to 838,200,666.30, 1,257,300,999.45 and 263,771,994.30

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Solution

The fourth proportional to 838,200,666.30, 1,257,300,999.45 and 263,771,994.30 is: 395,657,991.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,200,666.30 : 1,257,300,999.45 = 263,771,994.30 : x
  2. Step 2: Convert to fraction form
    838,200,666.30/1,257,300,999.45 = 263,771,994.30/x
  3. Step 3: Cross multiply
    838,200,666.30x = 1,257,300,999.45 × 263,771,994.30
  4. Step 4: Simplify right side
    838,200,666.30x = 331,640,792,060,309,760
  5. Step 5: Solve for x
    x = 331,640,792,060,309,760/838,200,666.30
  6. Step 6: Final answer
    x = 395,657,991.45

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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.