Home / 12,635,945-18,953,972.58-4,000,087.70

Finding the Fourth Proportional to 12,635,945, 18,953,972.58 and 4,000,087.70

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Solution

The fourth proportional to 12,635,945, 18,953,972.58 and 4,000,087.70 is: 6,000,148.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635,945 : 18,953,972.58 = 4,000,087.70 : x
  2. Step 2: Convert to fraction form
    12,635,945/18,953,972.58 = 4,000,087.70/x
  3. Step 3: Cross multiply
    12,635,945x = 18,953,972.58 × 4,000,087.70
  4. Step 4: Simplify right side
    12,635,945x = 75,817,552,583,395.27
  5. Step 5: Solve for x
    x = 75,817,552,583,395.27/12,635,945
  6. Step 6: Final answer
    x = 6,000,148.99

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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.