Home / 84,995,571,374.40-127,574,986,399.20-72,587,912,059.20

Finding the Fourth Proportional to 84,995,571,374.40, 127,574,986,399.20 and 72,587,912,059.20

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Solution

The fourth proportional to 84,995,571,374.40, 127,574,986,399.20 and 72,587,912,059.20 is: 108,951,581,170.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,995,571,374.40 : 127,574,986,399.20 = 72,587,912,059.20 : x
  2. Step 2: Convert to fraction form
    84,995,571,374.40/127,574,986,399.20 = 72,587,912,059.20/x
  3. Step 3: Cross multiply
    84,995,571,374.40x = 127,574,986,399.20 × 72,587,912,059.20
  4. Step 4: Simplify right side
    84,995,571,374.40x = 9,260,401,893,698,765,324,288
  5. Step 5: Solve for x
    x = 9,260,401,893,698,765,324,288/84,995,571,374.40
  6. Step 6: Final answer
    x = 108,951,581,170.12

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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.