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Finding the Fourth Proportional to 322,570,978.40, 483,856,467.60 and 289,314,581.60

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Solution

The fourth proportional to 322,570,978.40, 483,856,467.60 and 289,314,581.60 is: 433,971,872.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,570,978.40 : 483,856,467.60 = 289,314,581.60 : x
  2. Step 2: Convert to fraction form
    322,570,978.40/483,856,467.60 = 289,314,581.60/x
  3. Step 3: Cross multiply
    322,570,978.40x = 483,856,467.60 × 289,314,581.60
  4. Step 4: Simplify right side
    322,570,978.40x = 139,986,731,478,147,968
  5. Step 5: Solve for x
    x = 139,986,731,478,147,968/322,570,978.40
  6. Step 6: Final answer
    x = 433,971,872.40

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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.