Home / 1,294,088,767.20-1,941,133,150.80-987,978,751.20

Finding the Fourth Proportional to 1,294,088,767.20, 1,941,133,150.80 and 987,978,751.20

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Solution

The fourth proportional to 1,294,088,767.20, 1,941,133,150.80 and 987,978,751.20 is: 1,481,968,126.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,088,767.20 : 1,941,133,150.80 = 987,978,751.20 : x
  2. Step 2: Convert to fraction form
    1,294,088,767.20/1,941,133,150.80 = 987,978,751.20/x
  3. Step 3: Cross multiply
    1,294,088,767.20x = 1,941,133,150.80 × 987,978,751.20
  4. Step 4: Simplify right side
    1,294,088,767.20x = 1,917,798,306,240,305,408
  5. Step 5: Solve for x
    x = 1,917,798,306,240,305,408/1,294,088,767.20
  6. Step 6: Final answer
    x = 1,481,968,126.80

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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.