Home / 858,448,988.70-1,287,767,961.45-276,084,131.10

Finding the Fourth Proportional to 858,448,988.70, 1,287,767,961.45 and 276,084,131.10

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Solution

The fourth proportional to 858,448,988.70, 1,287,767,961.45 and 276,084,131.10 is: 414,156,581.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,448,988.70 : 1,287,767,961.45 = 276,084,131.10 : x
  2. Step 2: Convert to fraction form
    858,448,988.70/1,287,767,961.45 = 276,084,131.10/x
  3. Step 3: Cross multiply
    858,448,988.70x = 1,287,767,961.45 × 276,084,131.10
  4. Step 4: Simplify right side
    858,448,988.70x = 355,532,298,695,341,568
  5. Step 5: Solve for x
    x = 355,532,298,695,341,568/858,448,988.70
  6. Step 6: Final answer
    x = 414,156,581.67

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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.