Home / 21,799,196.70-30,080,632.95-13,425,241.50

Finding the Fourth Proportional to 21,799,196.70, 30,080,632.95 and 13,425,241.50

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Solution

The fourth proportional to 21,799,196.70, 30,080,632.95 and 13,425,241.50 is: 18,525,442.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,799,196.70 : 30,080,632.95 = 13,425,241.50 : x
  2. Step 2: Convert to fraction form
    21,799,196.70/30,080,632.95 = 13,425,241.50/x
  3. Step 3: Cross multiply
    21,799,196.70x = 30,080,632.95 × 13,425,241.50
  4. Step 4: Simplify right side
    21,799,196.70x = 403,839,761,826,607.44
  5. Step 5: Solve for x
    x = 403,839,761,826,607.44/21,799,196.70
  6. Step 6: Final answer
    x = 18,525,442.35

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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.