Home / 858,448,856.70-1,287,767,763.45-276,083,999.10

Finding the Fourth Proportional to 858,448,856.70, 1,287,767,763.45 and 276,083,999.10

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Solution

The fourth proportional to 858,448,856.70, 1,287,767,763.45 and 276,083,999.10 is: 414,156,383.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,448,856.70 : 1,287,767,763.45 = 276,083,999.10 : x
  2. Step 2: Convert to fraction form
    858,448,856.70/1,287,767,763.45 = 276,083,999.10/x
  3. Step 3: Cross multiply
    858,448,856.70x = 1,287,767,763.45 × 276,083,999.10
  4. Step 4: Simplify right side
    858,448,856.70x = 355,532,074,045,338,880
  5. Step 5: Solve for x
    x = 355,532,074,045,338,880/858,448,856.70
  6. Step 6: Final answer
    x = 414,156,383.66

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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.