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Finding the Fourth Proportional to 85,609,872,002.40, 128,414,808,003.60 and 85,609,872,002.40

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Solution

The fourth proportional to 85,609,872,002.40, 128,414,808,003.60 and 85,609,872,002.40 is: 128,414,808,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,609,872,002.40 : 128,414,808,003.60 = 85,609,872,002.40 : x
  2. Step 2: Convert to fraction form
    85,609,872,002.40/128,414,808,003.60 = 85,609,872,002.40/x
  3. Step 3: Cross multiply
    85,609,872,002.40x = 128,414,808,003.60 × 85,609,872,002.40
  4. Step 4: Simplify right side
    85,609,872,002.40x = 10,993,575,276,400,965,844,992
  5. Step 5: Solve for x
    x = 10,993,575,276,400,965,844,992/85,609,872,002.40
  6. Step 6: Final answer
    x = 128,414,808,003.60

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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.