Home / 12,145,424.40-18,219,078.45-4,058,428.95

Finding the Fourth Proportional to 12,145,424.40, 18,219,078.45 and 4,058,428.95

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Solution

The fourth proportional to 12,145,424.40, 18,219,078.45 and 4,058,428.95 is: 6,087,958.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145,424.40 : 18,219,078.45 = 4,058,428.95 : x
  2. Step 2: Convert to fraction form
    12,145,424.40/18,219,078.45 = 4,058,428.95/x
  3. Step 3: Cross multiply
    12,145,424.40x = 18,219,078.45 × 4,058,428.95
  4. Step 4: Simplify right side
    12,145,424.40x = 73,940,835,423,801.12
  5. Step 5: Solve for x
    x = 73,940,835,423,801.12/12,145,424.40
  6. Step 6: Final answer
    x = 6,087,958.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.