Home / 14,078,599.50-19,428,467.31-7,640,071.50

Finding the Fourth Proportional to 14,078,599.50, 19,428,467.31 and 7,640,071.50

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Solution

The fourth proportional to 14,078,599.50, 19,428,467.31 and 7,640,071.50 is: 10,543,298.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078,599.50 : 19,428,467.31 = 7,640,071.50 : x
  2. Step 2: Convert to fraction form
    14,078,599.50/19,428,467.31 = 7,640,071.50/x
  3. Step 3: Cross multiply
    14,078,599.50x = 19,428,467.31 × 7,640,071.50
  4. Step 4: Simplify right side
    14,078,599.50x = 148,434,879,383,812.66
  5. Step 5: Solve for x
    x = 148,434,879,383,812.66/14,078,599.50
  6. Step 6: Final answer
    x = 10,543,298.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.