Home / 1,245,031,052.57-1,867,874,138.76-447,428,766.20

Finding the Fourth Proportional to 1,245,031,052.57, 1,867,874,138.76 and 447,428,766.20

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Solution

The fourth proportional to 1,245,031,052.57, 1,867,874,138.76 and 447,428,766.20 is: 671,260,865.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,031,052.57 : 1,867,874,138.76 = 447,428,766.20 : x
  2. Step 2: Convert to fraction form
    1,245,031,052.57/1,867,874,138.76 = 447,428,766.20/x
  3. Step 3: Cross multiply
    1,245,031,052.57x = 1,867,874,138.76 × 447,428,766.20
  4. Step 4: Simplify right side
    1,245,031,052.57x = 835,740,621,314,889,728
  5. Step 5: Solve for x
    x = 835,740,621,314,889,728/1,245,031,052.57
  6. Step 6: Final answer
    x = 671,260,865.01

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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.