Home / 2,019,208,523.80-3,028,812,785.70-639,131,042.20

Finding the Fourth Proportional to 2,019,208,523.80, 3,028,812,785.70 and 639,131,042.20

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Solution

The fourth proportional to 2,019,208,523.80, 3,028,812,785.70 and 639,131,042.20 is: 958,696,563.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019,208,523.80 : 3,028,812,785.70 = 639,131,042.20 : x
  2. Step 2: Convert to fraction form
    2,019,208,523.80/3,028,812,785.70 = 639,131,042.20/x
  3. Step 3: Cross multiply
    2,019,208,523.80x = 3,028,812,785.70 × 639,131,042.20
  4. Step 4: Simplify right side
    2,019,208,523.80x = 1,935,808,272,353,126,400
  5. Step 5: Solve for x
    x = 1,935,808,272,353,126,400/2,019,208,523.80
  6. Step 6: Final answer
    x = 958,696,563.30

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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.