Home / 30,421,900-41,982,222.48-16,671,405.28

Finding the Fourth Proportional to 30,421,900, 41,982,222.48 and 16,671,405.28

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Solution

The fourth proportional to 30,421,900, 41,982,222.48 and 16,671,405.28 is: 23,006,539.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,421,900 : 41,982,222.48 = 16,671,405.28 : x
  2. Step 2: Convert to fraction form
    30,421,900/41,982,222.48 = 16,671,405.28/x
  3. Step 3: Cross multiply
    30,421,900x = 41,982,222.48 × 16,671,405.28
  4. Step 4: Simplify right side
    30,421,900x = 699,902,645,519,206.62
  5. Step 5: Solve for x
    x = 699,902,645,519,206.62/30,421,900
  6. Step 6: Final answer
    x = 23,006,539.55

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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.