Home / 1,420,256,739,918.80-2,130,169,857,285.40-386,540,300,838.20

Finding the Fourth Proportional to 1,420,256,739,918.80, 2,130,169,857,285.40 and 386,540,300,838.20

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Solution

The fourth proportional to 1,420,256,739,918.80, 2,130,169,857,285.40 and 386,540,300,838.20 is: 579,751,867,622.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,256,739,918.80 : 2,130,169,857,285.40 = 386,540,300,838.20 : x
  2. Step 2: Convert to fraction form
    1,420,256,739,918.80/2,130,169,857,285.40 = 386,540,300,838.20/x
  3. Step 3: Cross multiply
    1,420,256,739,918.80x = 2,130,169,857,285.40 × 386,540,300,838.20
  4. Step 4: Simplify right side
    1,420,256,739,918.80x = 823,396,497,471,564,047,974,400
  5. Step 5: Solve for x
    x = 823,396,497,471,564,047,974,400/1,420,256,739,918.80
  6. Step 6: Final answer
    x = 579,751,867,622.64

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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.