Home / 103,828,880.40-155,758,815.36-38,245,020.72

Finding the Fourth Proportional to 103,828,880.40, 155,758,815.36 and 38,245,020.72

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Solution

The fourth proportional to 103,828,880.40, 155,758,815.36 and 38,245,020.72 is: 57,373,238.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,828,880.40 : 155,758,815.36 = 38,245,020.72 : x
  2. Step 2: Convert to fraction form
    103,828,880.40/155,758,815.36 = 38,245,020.72/x
  3. Step 3: Cross multiply
    103,828,880.40x = 155,758,815.36 × 38,245,020.72
  4. Step 4: Simplify right side
    103,828,880.40x = 5,956,999,120,765,855
  5. Step 5: Solve for x
    x = 5,956,999,120,765,855/103,828,880.40
  6. Step 6: Final answer
    x = 57,373,238.52

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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.