Home / 15,290,888,579.16-21,102,486,783.84-9,269,647,779.12

Finding the Fourth Proportional to 15,290,888,579.16, 21,102,486,783.84 and 9,269,647,779.12

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Solution

The fourth proportional to 15,290,888,579.16, 21,102,486,783.84 and 9,269,647,779.12 is: 12,792,756,858.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290,888,579.16 : 21,102,486,783.84 = 9,269,647,779.12 : x
  2. Step 2: Convert to fraction form
    15,290,888,579.16/21,102,486,783.84 = 9,269,647,779.12/x
  3. Step 3: Cross multiply
    15,290,888,579.16x = 21,102,486,783.84 × 9,269,647,779.12
  4. Step 4: Simplify right side
    15,290,888,579.16x = 195,612,619,749,731,631,104
  5. Step 5: Solve for x
    x = 195,612,619,749,731,631,104/15,290,888,579.16
  6. Step 6: Final answer
    x = 12,792,756,858.90

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1.5x scale

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.