Home / 18,740,018.70-28,047,820.05-13,607,858.70

Finding the Fourth Proportional to 18,740,018.70, 28,047,820.05 and 13,607,858.70

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Solution

The fourth proportional to 18,740,018.70, 28,047,820.05 and 13,607,858.70 is: 20,366,616.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740,018.70 : 28,047,820.05 = 13,607,858.70 : x
  2. Step 2: Convert to fraction form
    18,740,018.70/28,047,820.05 = 13,607,858.70/x
  3. Step 3: Cross multiply
    18,740,018.70x = 28,047,820.05 × 13,607,858.70
  4. Step 4: Simplify right side
    18,740,018.70x = 381,670,772,083,426.94
  5. Step 5: Solve for x
    x = 381,670,772,083,426.94/18,740,018.70
  6. Step 6: Final answer
    x = 20,366,616.39

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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.