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Finding the Fourth Proportional to 809,190,010.90, 1,213,785,016.35 and 809,190,010.90

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Solution

The fourth proportional to 809,190,010.90, 1,213,785,016.35 and 809,190,010.90 is: 1,213,785,016.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,190,010.90 : 1,213,785,016.35 = 809,190,010.90 : x
  2. Step 2: Convert to fraction form
    809,190,010.90/1,213,785,016.35 = 809,190,010.90/x
  3. Step 3: Cross multiply
    809,190,010.90x = 1,213,785,016.35 × 809,190,010.90
  4. Step 4: Simplify right side
    809,190,010.90x = 982,182,710,610,513,024
  5. Step 5: Solve for x
    x = 982,182,710,610,513,024/809,190,010.90
  6. Step 6: Final answer
    x = 1,213,785,016.35

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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.