Home / 1,915,220,399.98-2,872,951,970.27-809,619,204.10

Finding the Fourth Proportional to 1,915,220,399.98, 2,872,951,970.27 and 809,619,204.10

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Solution

The fourth proportional to 1,915,220,399.98, 2,872,951,970.27 and 809,619,204.10 is: 1,214,480,112.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,220,399.98 : 2,872,951,970.27 = 809,619,204.10 : x
  2. Step 2: Convert to fraction form
    1,915,220,399.98/2,872,951,970.27 = 809,619,204.10/x
  3. Step 3: Cross multiply
    1,915,220,399.98x = 2,872,951,970.27 × 809,619,204.10
  4. Step 4: Simplify right side
    1,915,220,399.98x = 2,325,997,087,576,293,376
  5. Step 5: Solve for x
    x = 2,325,997,087,576,293,376/1,915,220,399.98
  6. Step 6: Final answer
    x = 1,214,480,112.89

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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.