Home / 1,189,528,998.38-1,784,095,592.57-360,285,484.70

Finding the Fourth Proportional to 1,189,528,998.38, 1,784,095,592.57 and 360,285,484.70

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Solution

The fourth proportional to 1,189,528,998.38, 1,784,095,592.57 and 360,285,484.70 is: 540,368,285.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,528,998.38 : 1,784,095,592.57 = 360,285,484.70 : x
  2. Step 2: Convert to fraction form
    1,189,528,998.38/1,784,095,592.57 = 360,285,484.70/x
  3. Step 3: Cross multiply
    1,189,528,998.38x = 1,784,095,592.57 × 360,285,484.70
  4. Step 4: Simplify right side
    1,189,528,998.38x = 642,783,745,309,494,272
  5. Step 5: Solve for x
    x = 642,783,745,309,494,272/1,189,528,998.38
  6. Step 6: Final answer
    x = 540,368,285.42

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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.