Home / 76,589,131.12-105,678,545.74-45,652,179.04

Finding the Fourth Proportional to 76,589,131.12, 105,678,545.74 and 45,652,179.04

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Solution

The fourth proportional to 76,589,131.12, 105,678,545.74 and 45,652,179.04 is: 62,991,390.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,589,131.12 : 105,678,545.74 = 45,652,179.04 : x
  2. Step 2: Convert to fraction form
    76,589,131.12/105,678,545.74 = 45,652,179.04/x
  3. Step 3: Cross multiply
    76,589,131.12x = 105,678,545.74 × 45,652,179.04
  4. Step 4: Simplify right side
    76,589,131.12x = 4,824,455,890,809,309
  5. Step 5: Solve for x
    x = 4,824,455,890,809,309/76,589,131.12
  6. Step 6: Final answer
    x = 62,991,390.82

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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.