Home / 15,290,888,579.66-21,102,486,784.53-9,269,647,779.62

Finding the Fourth Proportional to 15,290,888,579.66, 21,102,486,784.53 and 9,269,647,779.62

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Solution

The fourth proportional to 15,290,888,579.66, 21,102,486,784.53 and 9,269,647,779.62 is: 12,792,756,859.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290,888,579.66 : 21,102,486,784.53 = 9,269,647,779.62 : x
  2. Step 2: Convert to fraction form
    15,290,888,579.66/21,102,486,784.53 = 9,269,647,779.62/x
  3. Step 3: Cross multiply
    15,290,888,579.66x = 21,102,486,784.53 × 9,269,647,779.62
  4. Step 4: Simplify right side
    15,290,888,579.66x = 195,612,619,766,678,913,024
  5. Step 5: Solve for x
    x = 195,612,619,766,678,913,024/15,290,888,579.66
  6. Step 6: Final answer
    x = 12,792,756,859.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.