Home / 30,923,279.78-42,674,640.08-16,985,923.65

Finding the Fourth Proportional to 30,923,279.78, 42,674,640.08 and 16,985,923.65

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Solution

The fourth proportional to 30,923,279.78, 42,674,640.08 and 16,985,923.65 is: 23,440,856.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,923,279.78 : 42,674,640.08 = 16,985,923.65 : x
  2. Step 2: Convert to fraction form
    30,923,279.78/42,674,640.08 = 16,985,923.65/x
  3. Step 3: Cross multiply
    30,923,279.78x = 42,674,640.08 × 16,985,923.65
  4. Step 4: Simplify right side
    30,923,279.78x = 724,868,178,105,180.25
  5. Step 5: Solve for x
    x = 724,868,178,105,180.25/30,923,279.78
  6. Step 6: Final answer
    x = 23,440,856.97

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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.