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Finding the Fourth Proportional to 354,348,720.80, 494,878,885.60 and 354,348,720.80

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Solution

The fourth proportional to 354,348,720.80, 494,878,885.60 and 354,348,720.80 is: 494,878,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,348,720.80 : 494,878,885.60 = 354,348,720.80 : x
  2. Step 2: Convert to fraction form
    354,348,720.80/494,878,885.60 = 354,348,720.80/x
  3. Step 3: Cross multiply
    354,348,720.80x = 494,878,885.60 × 354,348,720.80
  4. Step 4: Simplify right side
    354,348,720.80x = 175,359,700,063,289,568
  5. Step 5: Solve for x
    x = 175,359,700,063,289,568/354,348,720.80
  6. Step 6: Final answer
    x = 494,878,885.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.