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Finding the Fourth Proportional to 1,818,721,804.90, 2,728,082,707.35 and 1,818,721,804.90

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Solution

The fourth proportional to 1,818,721,804.90, 2,728,082,707.35 and 1,818,721,804.90 is: 2,728,082,707.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818,721,804.90 : 2,728,082,707.35 = 1,818,721,804.90 : x
  2. Step 2: Convert to fraction form
    1,818,721,804.90/2,728,082,707.35 = 1,818,721,804.90/x
  3. Step 3: Cross multiply
    1,818,721,804.90x = 2,728,082,707.35 × 1,818,721,804.90
  4. Step 4: Simplify right side
    1,818,721,804.90x = 4,961,623,505,428,070,400
  5. Step 5: Solve for x
    x = 4,961,623,505,428,070,400/1,818,721,804.90
  6. Step 6: Final answer
    x = 2,728,082,707.35

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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.