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Finding the Fourth Proportional to 85,975,344,057.60, 128,963,016,086.40 and 85,975,344,057.60

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Solution

The fourth proportional to 85,975,344,057.60, 128,963,016,086.40 and 85,975,344,057.60 is: 128,963,016,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,975,344,057.60 : 128,963,016,086.40 = 85,975,344,057.60 : x
  2. Step 2: Convert to fraction form
    85,975,344,057.60/128,963,016,086.40 = 85,975,344,057.60/x
  3. Step 3: Cross multiply
    85,975,344,057.60x = 128,963,016,086.40 × 85,975,344,057.60
  4. Step 4: Simplify right side
    85,975,344,057.60x = 11,087,639,678,734,043,185,152
  5. Step 5: Solve for x
    x = 11,087,639,678,734,043,185,152/85,975,344,057.60
  6. Step 6: Final answer
    x = 128,963,016,086.40

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Double scale
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Similar ratio
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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.