Home / 870,186,671.70-1,305,280,007.55-295,757,999.70

Finding the Fourth Proportional to 870,186,671.70, 1,305,280,007.55 and 295,757,999.70

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Solution

The fourth proportional to 870,186,671.70, 1,305,280,007.55 and 295,757,999.70 is: 443,636,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,186,671.70 : 1,305,280,007.55 = 295,757,999.70 : x
  2. Step 2: Convert to fraction form
    870,186,671.70/1,305,280,007.55 = 295,757,999.70/x
  3. Step 3: Cross multiply
    870,186,671.70x = 1,305,280,007.55 × 295,757,999.70
  4. Step 4: Simplify right side
    870,186,671.70x = 386,047,004,081,388,864
  5. Step 5: Solve for x
    x = 386,047,004,081,388,864/870,186,671.70
  6. Step 6: Final answer
    x = 443,636,999.55

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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.