Home / 31,405,943,116.80-47,051,583,782.40-19,137,132,057.60

Finding the Fourth Proportional to 31,405,943,116.80, 47,051,583,782.40 and 19,137,132,057.60

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Solution

The fourth proportional to 31,405,943,116.80, 47,051,583,782.40 and 19,137,132,057.60 is: 28,670,763,651.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,405,943,116.80 : 47,051,583,782.40 = 19,137,132,057.60 : x
  2. Step 2: Convert to fraction form
    31,405,943,116.80/47,051,583,782.40 = 19,137,132,057.60/x
  3. Step 3: Cross multiply
    31,405,943,116.80x = 47,051,583,782.40 × 19,137,132,057.60
  4. Step 4: Simplify right side
    31,405,943,116.80x = 900,432,372,363,019,288,576
  5. Step 5: Solve for x
    x = 900,432,372,363,019,288,576/31,405,943,116.80
  6. Step 6: Final answer
    x = 28,670,763,651.78

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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.