Home / 81,004,412.05-111,786,382.94-43,834,688.40

Finding the Fourth Proportional to 81,004,412.05, 111,786,382.94 and 43,834,688.40

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Solution

The fourth proportional to 81,004,412.05, 111,786,382.94 and 43,834,688.40 is: 60,492,029.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,004,412.05 : 111,786,382.94 = 43,834,688.40 : x
  2. Step 2: Convert to fraction form
    81,004,412.05/111,786,382.94 = 43,834,688.40/x
  3. Step 3: Cross multiply
    81,004,412.05x = 111,786,382.94 × 43,834,688.40
  4. Step 4: Simplify right side
    81,004,412.05x = 4,900,121,263,537,976
  5. Step 5: Solve for x
    x = 4,900,121,263,537,976/81,004,412.05
  6. Step 6: Final answer
    x = 60,492,029.26

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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.