Home / 1,420,256,739,911.10-2,130,169,857,273.90-386,540,300,830.45

Finding the Fourth Proportional to 1,420,256,739,911.10, 2,130,169,857,273.90 and 386,540,300,830.45

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Solution

The fourth proportional to 1,420,256,739,911.10, 2,130,169,857,273.90 and 386,540,300,830.45 is: 579,751,867,611.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,256,739,911.10 : 2,130,169,857,273.90 = 386,540,300,830.45 : x
  2. Step 2: Convert to fraction form
    1,420,256,739,911.10/2,130,169,857,273.90 = 386,540,300,830.45/x
  3. Step 3: Cross multiply
    1,420,256,739,911.10x = 2,130,169,857,273.90 × 386,540,300,830.45
  4. Step 4: Simplify right side
    1,420,256,739,911.10x = 823,396,497,450,609,976,279,040
  5. Step 5: Solve for x
    x = 823,396,497,450,609,976,279,040/1,420,256,739,911.10
  6. Step 6: Final answer
    x = 579,751,867,611.03

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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.