Home / 131,462,763.38-181,423,955.21-72,724,415.79

Finding the Fourth Proportional to 131,462,763.38, 181,423,955.21 and 72,724,415.79

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Solution

The fourth proportional to 131,462,763.38, 181,423,955.21 and 72,724,415.79 is: 100,362,648.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,462,763.38 : 181,423,955.21 = 72,724,415.79 : x
  2. Step 2: Convert to fraction form
    131,462,763.38/181,423,955.21 = 72,724,415.79/x
  3. Step 3: Cross multiply
    131,462,763.38x = 181,423,955.21 × 72,724,415.79
  4. Step 4: Simplify right side
    131,462,763.38x = 13,193,951,152,594,756
  5. Step 5: Solve for x
    x = 13,193,951,152,594,756/131,462,763.38
  6. Step 6: Final answer
    x = 100,362,648.81

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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.