Home / 30,358,128.75-45,536,791.16-7,328,939.18

Finding the Fourth Proportional to 30,358,128.75, 45,536,791.16 and 7,328,939.18

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Solution

The fourth proportional to 30,358,128.75, 45,536,791.16 and 7,328,939.18 is: 10,993,311.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,358,128.75 : 45,536,791.16 = 7,328,939.18 : x
  2. Step 2: Convert to fraction form
    30,358,128.75/45,536,791.16 = 7,328,939.18/x
  3. Step 3: Cross multiply
    30,358,128.75x = 45,536,791.16 × 7,328,939.18
  4. Step 4: Simplify right side
    30,358,128.75x = 333,736,372,599,673
  5. Step 5: Solve for x
    x = 333,736,372,599,673/30,358,128.75
  6. Step 6: Final answer
    x = 10,993,311.72

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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.