Home / 13,731,038.48-18,949,718.84-7,619,466.98

Finding the Fourth Proportional to 13,731,038.48, 18,949,718.84 and 7,619,466.98

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Solution

The fourth proportional to 13,731,038.48, 18,949,718.84 and 7,619,466.98 is: 10,515,355.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731,038.48 : 18,949,718.84 = 7,619,466.98 : x
  2. Step 2: Convert to fraction form
    13,731,038.48/18,949,718.84 = 7,619,466.98/x
  3. Step 3: Cross multiply
    13,731,038.48x = 18,949,718.84 × 7,619,466.98
  4. Step 4: Simplify right side
    13,731,038.48x = 144,386,757,048,086.88
  5. Step 5: Solve for x
    x = 144,386,757,048,086.88/13,731,038.48
  6. Step 6: Final answer
    x = 10,515,355.94

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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.