Home / 657,848,721.78-986,763,783.92-159,862,896.86

Finding the Fourth Proportional to 657,848,721.78, 986,763,783.92 and 159,862,896.86

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Solution

The fourth proportional to 657,848,721.78, 986,763,783.92 and 159,862,896.86 is: 239,792,085.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,848,721.78 : 986,763,783.92 = 159,862,896.86 : x
  2. Step 2: Convert to fraction form
    657,848,721.78/986,763,783.92 = 159,862,896.86/x
  3. Step 3: Cross multiply
    657,848,721.78x = 986,763,783.92 × 159,862,896.86
  4. Step 4: Simplify right side
    657,848,721.78x = 157,746,917,013,986,304
  5. Step 5: Solve for x
    x = 157,746,917,013,986,304/657,848,721.78
  6. Step 6: Final answer
    x = 239,792,085.61

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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.