Home / 18,870,321.64-28,302,329.64-5,224,847.40

Finding the Fourth Proportional to 18,870,321.64, 28,302,329.64 and 5,224,847.40

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Solution

The fourth proportional to 18,870,321.64, 28,302,329.64 and 5,224,847.40 is: 7,836,398.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870,321.64 : 28,302,329.64 = 5,224,847.40 : x
  2. Step 2: Convert to fraction form
    18,870,321.64/28,302,329.64 = 5,224,847.40/x
  3. Step 3: Cross multiply
    18,870,321.64x = 28,302,329.64 × 5,224,847.40
  4. Step 4: Simplify right side
    18,870,321.64x = 147,875,353,433,496.94
  5. Step 5: Solve for x
    x = 147,875,353,433,496.94/18,870,321.64
  6. Step 6: Final answer
    x = 7,836,398.14

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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.