Home / 21,938,348.21-30,274,893.32-12,148,780.75

Finding the Fourth Proportional to 21,938,348.21, 30,274,893.32 and 12,148,780.75

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Solution

The fourth proportional to 21,938,348.21, 30,274,893.32 and 12,148,780.75 is: 16,765,302.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,938,348.21 : 30,274,893.32 = 12,148,780.75 : x
  2. Step 2: Convert to fraction form
    21,938,348.21/30,274,893.32 = 12,148,780.75/x
  3. Step 3: Cross multiply
    21,938,348.21x = 30,274,893.32 × 12,148,780.75
  4. Step 4: Simplify right side
    21,938,348.21x = 367,803,041,037,888.50
  5. Step 5: Solve for x
    x = 367,803,041,037,888.50/21,938,348.21
  6. Step 6: Final answer
    x = 16,765,302.36

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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.