Home / 1,187,943,908.80-1,783,616,474.40-671,383,256.80

Finding the Fourth Proportional to 1,187,943,908.80, 1,783,616,474.40 and 671,383,256.80

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Solution

The fourth proportional to 1,187,943,908.80, 1,783,616,474.40 and 671,383,256.80 is: 1,008,036,009.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,943,908.80 : 1,783,616,474.40 = 671,383,256.80 : x
  2. Step 2: Convert to fraction form
    1,187,943,908.80/1,783,616,474.40 = 671,383,256.80/x
  3. Step 3: Cross multiply
    1,187,943,908.80x = 1,783,616,474.40 × 671,383,256.80
  4. Step 4: Simplify right side
    1,187,943,908.80x = 1,197,490,237,464,805,888
  5. Step 5: Solve for x
    x = 1,197,490,237,464,805,888/1,187,943,908.80
  6. Step 6: Final answer
    x = 1,008,036,009.61

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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.