Home / 30,809,487.45-42,518,420.99-17,058,451.57

Finding the Fourth Proportional to 30,809,487.45, 42,518,420.99 and 17,058,451.57

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Solution

The fourth proportional to 30,809,487.45, 42,518,420.99 and 17,058,451.57 is: 23,541,398.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,809,487.45 : 42,518,420.99 = 17,058,451.57 : x
  2. Step 2: Convert to fraction form
    30,809,487.45/42,518,420.99 = 17,058,451.57/x
  3. Step 3: Cross multiply
    30,809,487.45x = 42,518,420.99 × 17,058,451.57
  4. Step 4: Simplify right side
    30,809,487.45x = 725,298,425,290,786.50
  5. Step 5: Solve for x
    x = 725,298,425,290,786.50/30,809,487.45
  6. Step 6: Final answer
    x = 23,541,398.62

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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.