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Finding the Fourth Proportional to 4,278,679,813.60, 6,418,019,720.40 and 4,278,679,813.60

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Solution

The fourth proportional to 4,278,679,813.60, 6,418,019,720.40 and 4,278,679,813.60 is: 6,418,019,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278,679,813.60 : 6,418,019,720.40 = 4,278,679,813.60 : x
  2. Step 2: Convert to fraction form
    4,278,679,813.60/6,418,019,720.40 = 4,278,679,813.60/x
  3. Step 3: Cross multiply
    4,278,679,813.60x = 6,418,019,720.40 × 4,278,679,813.60
  4. Step 4: Simplify right side
    4,278,679,813.60x = 27,460,651,420,962,193,408
  5. Step 5: Solve for x
    x = 27,460,651,420,962,193,408/4,278,679,813.60
  6. Step 6: Final answer
    x = 6,418,019,720.40

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1.5x scale

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.