Home / 8,939,428.20-13,399,811.10-4,889,687.40

Finding the Fourth Proportional to 8,939,428.20, 13,399,811.10 and 4,889,687.40

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Solution

The fourth proportional to 8,939,428.20, 13,399,811.10 and 4,889,687.40 is: 7,329,427.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939,428.20 : 13,399,811.10 = 4,889,687.40 : x
  2. Step 2: Convert to fraction form
    8,939,428.20/13,399,811.10 = 4,889,687.40/x
  3. Step 3: Cross multiply
    8,939,428.20x = 13,399,811.10 × 4,889,687.40
  4. Step 4: Simplify right side
    8,939,428.20x = 65,520,887,498,050.14
  5. Step 5: Solve for x
    x = 65,520,887,498,050.14/8,939,428.20
  6. Step 6: Final answer
    x = 7,329,427.12

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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.