Home / 30,818,028.37-42,460,401.27-20,345,392.99

Finding the Fourth Proportional to 30,818,028.37, 42,460,401.27 and 20,345,392.99

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Solution

The fourth proportional to 30,818,028.37, 42,460,401.27 and 20,345,392.99 is: 28,031,434.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,818,028.37 : 42,460,401.27 = 20,345,392.99 : x
  2. Step 2: Convert to fraction form
    30,818,028.37/42,460,401.27 = 20,345,392.99/x
  3. Step 3: Cross multiply
    30,818,028.37x = 42,460,401.27 × 20,345,392.99
  4. Step 4: Simplify right side
    30,818,028.37x = 863,873,550,351,245.12
  5. Step 5: Solve for x
    x = 863,873,550,351,245.12/30,818,028.37
  6. Step 6: Final answer
    x = 28,031,434.72

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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.