Home / 76,179,838.79-105,128,795.21-41,372,778.39

Finding the Fourth Proportional to 76,179,838.79, 105,128,795.21 and 41,372,778.39

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Solution

The fourth proportional to 76,179,838.79, 105,128,795.21 and 41,372,778.39 is: 57,094,769.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,179,838.79 : 105,128,795.21 = 41,372,778.39 : x
  2. Step 2: Convert to fraction form
    76,179,838.79/105,128,795.21 = 41,372,778.39/x
  3. Step 3: Cross multiply
    76,179,838.79x = 105,128,795.21 × 41,372,778.39
  4. Step 4: Simplify right side
    76,179,838.79x = 4,349,470,346,424,159.50
  5. Step 5: Solve for x
    x = 4,349,470,346,424,159.50/76,179,838.79
  6. Step 6: Final answer
    x = 57,094,769.64

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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.