Home / 823,155,229.44-1,135,912,500.72-488,642,051.52

Finding the Fourth Proportional to 823,155,229.44, 1,135,912,500.72 and 488,642,051.52

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Solution

The fourth proportional to 823,155,229.44, 1,135,912,500.72 and 488,642,051.52 is: 674,301,267.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,155,229.44 : 1,135,912,500.72 = 488,642,051.52 : x
  2. Step 2: Convert to fraction form
    823,155,229.44/1,135,912,500.72 = 488,642,051.52/x
  3. Step 3: Cross multiply
    823,155,229.44x = 1,135,912,500.72 × 488,642,051.52
  4. Step 4: Simplify right side
    823,155,229.44x = 555,054,614,699,034,240
  5. Step 5: Solve for x
    x = 555,054,614,699,034,240/823,155,229.44
  6. Step 6: Final answer
    x = 674,301,267.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.