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Finding the Fourth Proportional to 2,800,390,935.60, 4,200,586,403.40 and 2,800,390,935.60

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Solution

The fourth proportional to 2,800,390,935.60, 4,200,586,403.40 and 2,800,390,935.60 is: 4,200,586,403.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800,390,935.60 : 4,200,586,403.40 = 2,800,390,935.60 : x
  2. Step 2: Convert to fraction form
    2,800,390,935.60/4,200,586,403.40 = 2,800,390,935.60/x
  3. Step 3: Cross multiply
    2,800,390,935.60x = 4,200,586,403.40 × 2,800,390,935.60
  4. Step 4: Simplify right side
    2,800,390,935.60x = 11,763,284,088,285,964,288
  5. Step 5: Solve for x
    x = 11,763,284,088,285,964,288/2,800,390,935.60
  6. Step 6: Final answer
    x = 4,200,586,403.40

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Double scale
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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.