Home / 870,178,183.70-1,305,303,295.43-256,762,409.45

Finding the Fourth Proportional to 870,178,183.70, 1,305,303,295.43 and 256,762,409.45

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Solution

The fourth proportional to 870,178,183.70, 1,305,303,295.43 and 256,762,409.45 is: 385,154,242.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,178,183.70 : 1,305,303,295.43 = 256,762,409.45 : x
  2. Step 2: Convert to fraction form
    870,178,183.70/1,305,303,295.43 = 256,762,409.45/x
  3. Step 3: Cross multiply
    870,178,183.70x = 1,305,303,295.43 × 256,762,409.45
  4. Step 4: Simplify right side
    870,178,183.70x = 335,152,819,189,821,632
  5. Step 5: Solve for x
    x = 335,152,819,189,821,632/870,178,183.70
  6. Step 6: Final answer
    x = 385,154,242.51

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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.