Home / 31,405,943,139.80-47,051,583,816.90-19,137,132,080.60

Finding the Fourth Proportional to 31,405,943,139.80, 47,051,583,816.90 and 19,137,132,080.60

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Solution

The fourth proportional to 31,405,943,139.80, 47,051,583,816.90 and 19,137,132,080.60 is: 28,670,763,686.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,405,943,139.80 : 47,051,583,816.90 = 19,137,132,080.60 : x
  2. Step 2: Convert to fraction form
    31,405,943,139.80/47,051,583,816.90 = 19,137,132,080.60/x
  3. Step 3: Cross multiply
    31,405,943,139.80x = 47,051,583,816.90 × 19,137,132,080.60
  4. Step 4: Simplify right side
    31,405,943,139.80x = 900,432,374,105,436,717,056
  5. Step 5: Solve for x
    x = 900,432,374,105,436,717,056/31,405,943,139.80
  6. Step 6: Final answer
    x = 28,670,763,686.26

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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.