Home / 12,877,093,632.80-19,315,640,449.20-12,387,317,607.20

Finding the Fourth Proportional to 12,877,093,632.80, 19,315,640,449.20 and 12,387,317,607.20

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Solution

The fourth proportional to 12,877,093,632.80, 19,315,640,449.20 and 12,387,317,607.20 is: 18,580,976,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877,093,632.80 : 19,315,640,449.20 = 12,387,317,607.20 : x
  2. Step 2: Convert to fraction form
    12,877,093,632.80/19,315,640,449.20 = 12,387,317,607.20/x
  3. Step 3: Cross multiply
    12,877,093,632.80x = 19,315,640,449.20 × 12,387,317,607.20
  4. Step 4: Simplify right side
    12,877,093,632.80x = 239,268,973,030,719,717,376
  5. Step 5: Solve for x
    x = 239,268,973,030,719,717,376/12,877,093,632.80
  6. Step 6: Final answer
    x = 18,580,976,410.80

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1.5x scale

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.