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Finding the Fourth Proportional to 298,937,408.40, 448,406,112.60 and 298,937,408.40

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Solution

The fourth proportional to 298,937,408.40, 448,406,112.60 and 298,937,408.40 is: 448,406,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,937,408.40 : 448,406,112.60 = 298,937,408.40 : x
  2. Step 2: Convert to fraction form
    298,937,408.40/448,406,112.60 = 298,937,408.40/x
  3. Step 3: Cross multiply
    298,937,408.40x = 448,406,112.60 × 298,937,408.40
  4. Step 4: Simplify right side
    298,937,408.40x = 134,045,361,211,362,576
  5. Step 5: Solve for x
    x = 134,045,361,211,362,576/298,937,408.40
  6. Step 6: Final answer
    x = 448,406,112.60

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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.