Home / 18,898,435.70-28,347,653.55-13,125,533.30

Finding the Fourth Proportional to 18,898,435.70, 28,347,653.55 and 13,125,533.30

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Solution

The fourth proportional to 18,898,435.70, 28,347,653.55 and 13,125,533.30 is: 19,688,299.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898,435.70 : 28,347,653.55 = 13,125,533.30 : x
  2. Step 2: Convert to fraction form
    18,898,435.70/28,347,653.55 = 13,125,533.30/x
  3. Step 3: Cross multiply
    18,898,435.70x = 28,347,653.55 × 13,125,533.30
  4. Step 4: Simplify right side
    18,898,435.70x = 372,078,070,647,388.25
  5. Step 5: Solve for x
    x = 372,078,070,647,388.25/18,898,435.70
  6. Step 6: Final answer
    x = 19,688,299.95

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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.