Home / 105,178,171.57-157,775,187.51-31,396,123.19

Finding the Fourth Proportional to 105,178,171.57, 157,775,187.51 and 31,396,123.19

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Solution

The fourth proportional to 105,178,171.57, 157,775,187.51 and 31,396,123.19 is: 47,096,551.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,178,171.57 : 157,775,187.51 = 31,396,123.19 : x
  2. Step 2: Convert to fraction form
    105,178,171.57/157,775,187.51 = 31,396,123.19/x
  3. Step 3: Cross multiply
    105,178,171.57x = 157,775,187.51 × 31,396,123.19
  4. Step 4: Simplify right side
    105,178,171.57x = 4,953,529,223,783,747
  5. Step 5: Solve for x
    x = 4,953,529,223,783,747/105,178,171.57
  6. Step 6: Final answer
    x = 47,096,551.97

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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.