Home / 12,131,736,029.80-18,199,619,583.90-4,770,986,871.40

Finding the Fourth Proportional to 12,131,736,029.80, 18,199,619,583.90 and 4,770,986,871.40

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Solution

The fourth proportional to 12,131,736,029.80, 18,199,619,583.90 and 4,770,986,871.40 is: 7,157,272,948.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,736,029.80 : 18,199,619,583.90 = 4,770,986,871.40 : x
  2. Step 2: Convert to fraction form
    12,131,736,029.80/18,199,619,583.90 = 4,770,986,871.40/x
  3. Step 3: Cross multiply
    12,131,736,029.80x = 18,199,619,583.90 × 4,770,986,871.40
  4. Step 4: Simplify right side
    12,131,736,029.80x = 86,830,146,099,261,227,008
  5. Step 5: Solve for x
    x = 86,830,146,099,261,227,008/12,131,736,029.80
  6. Step 6: Final answer
    x = 7,157,272,948.07

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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.