Home / 189,837,661.58-261,974,043.02-105,064,945.38

Finding the Fourth Proportional to 189,837,661.58, 261,974,043.02 and 105,064,945.38

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Solution

The fourth proportional to 189,837,661.58, 261,974,043.02 and 105,064,945.38 is: 144,988,556.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,837,661.58 : 261,974,043.02 = 105,064,945.38 : x
  2. Step 2: Convert to fraction form
    189,837,661.58/261,974,043.02 = 105,064,945.38/x
  3. Step 3: Cross multiply
    189,837,661.58x = 261,974,043.02 × 105,064,945.38
  4. Step 4: Simplify right side
    189,837,661.58x = 27,524,288,520,874,072
  5. Step 5: Solve for x
    x = 27,524,288,520,874,072/189,837,661.58
  6. Step 6: Final answer
    x = 144,988,556.50

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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.