Home / 12,778,081,521.42-19,167,512,759.79-4,383,869,403.65

Finding the Fourth Proportional to 12,778,081,521.42, 19,167,512,759.79 and 4,383,869,403.65

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Solution

The fourth proportional to 12,778,081,521.42, 19,167,512,759.79 and 4,383,869,403.65 is: 6,575,938,069.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778,081,521.42 : 19,167,512,759.79 = 4,383,869,403.65 : x
  2. Step 2: Convert to fraction form
    12,778,081,521.42/19,167,512,759.79 = 4,383,869,403.65/x
  3. Step 3: Cross multiply
    12,778,081,521.42x = 19,167,512,759.79 × 4,383,869,403.65
  4. Step 4: Simplify right side
    12,778,081,521.42x = 84,027,872,731,618,525,184
  5. Step 5: Solve for x
    x = 84,027,872,731,618,525,184/12,778,081,521.42
  6. Step 6: Final answer
    x = 6,575,938,069.48

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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.