Home / 298,647,681.60-447,971,522.40-247,629,345.60

Finding the Fourth Proportional to 298,647,681.60, 447,971,522.40 and 247,629,345.60

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Solution

The fourth proportional to 298,647,681.60, 447,971,522.40 and 247,629,345.60 is: 371,444,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,647,681.60 : 447,971,522.40 = 247,629,345.60 : x
  2. Step 2: Convert to fraction form
    298,647,681.60/447,971,522.40 = 247,629,345.60/x
  3. Step 3: Cross multiply
    298,647,681.60x = 447,971,522.40 × 247,629,345.60
  4. Step 4: Simplify right side
    298,647,681.60x = 110,930,894,939,347,728
  5. Step 5: Solve for x
    x = 110,930,894,939,347,728/298,647,681.60
  6. Step 6: Final answer
    x = 371,444,018.40

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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.