Home / 76,691,390.90-105,836,731.21-45,356,300.93

Finding the Fourth Proportional to 76,691,390.90, 105,836,731.21 and 45,356,300.93

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Solution

The fourth proportional to 76,691,390.90, 105,836,731.21 and 45,356,300.93 is: 62,593,239.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,691,390.90 : 105,836,731.21 = 45,356,300.93 : x
  2. Step 2: Convert to fraction form
    76,691,390.90/105,836,731.21 = 45,356,300.93/x
  3. Step 3: Cross multiply
    76,691,390.90x = 105,836,731.21 × 45,356,300.93
  4. Step 4: Simplify right side
    76,691,390.90x = 4,800,362,630,529,570
  5. Step 5: Solve for x
    x = 4,800,362,630,529,570/76,691,390.90
  6. Step 6: Final answer
    x = 62,593,239.93

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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.