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Finding the Fourth Proportional to 72,067,987,318.40, 108,101,980,977.60 and 72,067,987,318.40

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Solution

The fourth proportional to 72,067,987,318.40, 108,101,980,977.60 and 72,067,987,318.40 is: 108,101,980,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,067,987,318.40 : 108,101,980,977.60 = 72,067,987,318.40 : x
  2. Step 2: Convert to fraction form
    72,067,987,318.40/108,101,980,977.60 = 72,067,987,318.40/x
  3. Step 3: Cross multiply
    72,067,987,318.40x = 108,101,980,977.60 × 72,067,987,318.40
  4. Step 4: Simplify right side
    72,067,987,318.40x = 7,790,692,194,187,594,432,512
  5. Step 5: Solve for x
    x = 7,790,692,194,187,594,432,512/72,067,987,318.40
  6. Step 6: Final answer
    x = 108,101,980,977.60

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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.