Home / 28,054,853.70-42,082,280.55-9,861,856.80

Finding the Fourth Proportional to 28,054,853.70, 42,082,280.55 and 9,861,856.80

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Solution

The fourth proportional to 28,054,853.70, 42,082,280.55 and 9,861,856.80 is: 14,792,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,054,853.70 : 42,082,280.55 = 9,861,856.80 : x
  2. Step 2: Convert to fraction form
    28,054,853.70/42,082,280.55 = 9,861,856.80/x
  3. Step 3: Cross multiply
    28,054,853.70x = 42,082,280.55 × 9,861,856.80
  4. Step 4: Simplify right side
    28,054,853.70x = 415,009,424,601,525.25
  5. Step 5: Solve for x
    x = 415,009,424,601,525.25/28,054,853.70
  6. Step 6: Final answer
    x = 14,792,785.20

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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.