Home / 843,294,344.40-1,263,261,900.60-742,293,435.60

Finding the Fourth Proportional to 843,294,344.40, 1,263,261,900.60 and 742,293,435.60

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Solution

The fourth proportional to 843,294,344.40, 1,263,261,900.60 and 742,293,435.60 is: 1,111,961,704.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,294,344.40 : 1,263,261,900.60 = 742,293,435.60 : x
  2. Step 2: Convert to fraction form
    843,294,344.40/1,263,261,900.60 = 742,293,435.60/x
  3. Step 3: Cross multiply
    843,294,344.40x = 1,263,261,900.60 × 742,293,435.60
  4. Step 4: Simplify right side
    843,294,344.40x = 937,711,016,258,959,616
  5. Step 5: Solve for x
    x = 937,711,016,258,959,616/843,294,344.40
  6. Step 6: Final answer
    x = 1,111,961,704.10

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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.