Home / 1,257,984,039.60-1,886,976,059.40-890,652,020.40

Finding the Fourth Proportional to 1,257,984,039.60, 1,886,976,059.40 and 890,652,020.40

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Solution

The fourth proportional to 1,257,984,039.60, 1,886,976,059.40 and 890,652,020.40 is: 1,335,978,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,984,039.60 : 1,886,976,059.40 = 890,652,020.40 : x
  2. Step 2: Convert to fraction form
    1,257,984,039.60/1,886,976,059.40 = 890,652,020.40/x
  3. Step 3: Cross multiply
    1,257,984,039.60x = 1,886,976,059.40 × 890,652,020.40
  4. Step 4: Simplify right side
    1,257,984,039.60x = 1,680,639,039,751,040,512
  5. Step 5: Solve for x
    x = 1,680,639,039,751,040,512/1,257,984,039.60
  6. Step 6: Final answer
    x = 1,335,978,030.60

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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.