Home / 43,512,744.16-65,262,020.64-12,800,139.40

Finding the Fourth Proportional to 43,512,744.16, 65,262,020.64 and 12,800,139.40

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Solution

The fourth proportional to 43,512,744.16, 65,262,020.64 and 12,800,139.40 is: 19,198,121.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,512,744.16 : 65,262,020.64 = 12,800,139.40 : x
  2. Step 2: Convert to fraction form
    43,512,744.16/65,262,020.64 = 12,800,139.40/x
  3. Step 3: Cross multiply
    43,512,744.16x = 65,262,020.64 × 12,800,139.40
  4. Step 4: Simplify right side
    43,512,744.16x = 835,362,961,717,677.25
  5. Step 5: Solve for x
    x = 835,362,961,717,677.25/43,512,744.16
  6. Step 6: Final answer
    x = 19,198,121.79

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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.