Home / 9,870,361.44-13,590,818.46-8,639,780.28

Finding the Fourth Proportional to 9,870,361.44, 13,590,818.46 and 8,639,780.28

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Solution

The fourth proportional to 9,870,361.44, 13,590,818.46 and 8,639,780.28 is: 11,896,391.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,870,361.44 : 13,590,818.46 = 8,639,780.28 : x
  2. Step 2: Convert to fraction form
    9,870,361.44/13,590,818.46 = 8,639,780.28/x
  3. Step 3: Cross multiply
    9,870,361.44x = 13,590,818.46 × 8,639,780.28
  4. Step 4: Simplify right side
    9,870,361.44x = 117,421,685,319,767.97
  5. Step 5: Solve for x
    x = 117,421,685,319,767.97/9,870,361.44
  6. Step 6: Final answer
    x = 11,896,391.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.