Home / 1,420,256,739,913.80-2,130,169,857,278-386,540,300,833.32

Finding the Fourth Proportional to 1,420,256,739,913.80, 2,130,169,857,278 and 386,540,300,833.32

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Solution

The fourth proportional to 1,420,256,739,913.80, 2,130,169,857,278 and 386,540,300,833.32 is: 579,751,867,615.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,256,739,913.80 : 2,130,169,857,278 = 386,540,300,833.32 : x
  2. Step 2: Convert to fraction form
    1,420,256,739,913.80/2,130,169,857,278 = 386,540,300,833.32/x
  3. Step 3: Cross multiply
    1,420,256,739,913.80x = 2,130,169,857,278 × 386,540,300,833.32
  4. Step 4: Simplify right side
    1,420,256,739,913.80x = 823,396,497,458,308,436,721,664
  5. Step 5: Solve for x
    x = 823,396,497,458,308,436,721,664/1,420,256,739,913.80
  6. Step 6: Final answer
    x = 579,751,867,615.35

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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.