Home / 21,860,736.90-30,170,476.80-12,693,379.38

Finding the Fourth Proportional to 21,860,736.90, 30,170,476.80 and 12,693,379.38

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Solution

The fourth proportional to 21,860,736.90, 30,170,476.80 and 12,693,379.38 is: 17,518,408.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860,736.90 : 30,170,476.80 = 12,693,379.38 : x
  2. Step 2: Convert to fraction form
    21,860,736.90/30,170,476.80 = 12,693,379.38/x
  3. Step 3: Cross multiply
    21,860,736.90x = 30,170,476.80 × 12,693,379.38
  4. Step 4: Simplify right side
    21,860,736.90x = 382,965,308,097,888.44
  5. Step 5: Solve for x
    x = 382,965,308,097,888.44/21,860,736.90
  6. Step 6: Final answer
    x = 17,518,408.00

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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.