Home / 1,189,528,996.87-1,784,095,590.32-360,285,483.20

Finding the Fourth Proportional to 1,189,528,996.87, 1,784,095,590.32 and 360,285,483.20

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Solution

The fourth proportional to 1,189,528,996.87, 1,784,095,590.32 and 360,285,483.20 is: 540,368,283.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,528,996.87 : 1,784,095,590.32 = 360,285,483.20 : x
  2. Step 2: Convert to fraction form
    1,189,528,996.87/1,784,095,590.32 = 360,285,483.20/x
  3. Step 3: Cross multiply
    1,189,528,996.87x = 1,784,095,590.32 × 360,285,483.20
  4. Step 4: Simplify right side
    1,189,528,996.87x = 642,783,741,824,077,568
  5. Step 5: Solve for x
    x = 642,783,741,824,077,568/1,189,528,996.87
  6. Step 6: Final answer
    x = 540,368,283.17

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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.