Home / 21,860,687.58-30,170,408.67-12,693,330.06

Finding the Fourth Proportional to 21,860,687.58, 30,170,408.67 and 12,693,330.06

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Solution

The fourth proportional to 21,860,687.58, 30,170,408.67 and 12,693,330.06 is: 17,518,339.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860,687.58 : 30,170,408.67 = 12,693,330.06 : x
  2. Step 2: Convert to fraction form
    21,860,687.58/30,170,408.67 = 12,693,330.06/x
  3. Step 3: Cross multiply
    21,860,687.58x = 30,170,408.67 × 12,693,330.06
  4. Step 4: Simplify right side
    21,860,687.58x = 382,962,955,293,395.69
  5. Step 5: Solve for x
    x = 382,962,955,293,395.69/21,860,687.58
  6. Step 6: Final answer
    x = 17,518,339.89

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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.