Home / 1,214,384,416.74-1,821,576,887.55-438,030,012.87

Finding the Fourth Proportional to 1,214,384,416.74, 1,821,576,887.55 and 438,030,012.87

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Solution

The fourth proportional to 1,214,384,416.74, 1,821,576,887.55 and 438,030,012.87 is: 657,045,113.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,384,416.74 : 1,821,576,887.55 = 438,030,012.87 : x
  2. Step 2: Convert to fraction form
    1,214,384,416.74/1,821,576,887.55 = 438,030,012.87/x
  3. Step 3: Cross multiply
    1,214,384,416.74x = 1,821,576,887.55 × 438,030,012.87
  4. Step 4: Simplify right side
    1,214,384,416.74x = 797,905,347,497,220,992
  5. Step 5: Solve for x
    x = 797,905,347,497,220,992/1,214,384,416.74
  6. Step 6: Final answer
    x = 657,045,113.97

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Double scale
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1.5x scale

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.