Home / 76,128,034.10-105,056,793.34-41,320,731.74

Finding the Fourth Proportional to 76,128,034.10, 105,056,793.34 and 41,320,731.74

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Solution

The fourth proportional to 76,128,034.10, 105,056,793.34 and 41,320,731.74 is: 57,022,667.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,128,034.10 : 105,056,793.34 = 41,320,731.74 : x
  2. Step 2: Convert to fraction form
    76,128,034.10/105,056,793.34 = 41,320,731.74/x
  3. Step 3: Cross multiply
    76,128,034.10x = 105,056,793.34 × 41,320,731.74
  4. Step 4: Simplify right side
    76,128,034.10x = 4,341,023,574,438,173
  5. Step 5: Solve for x
    x = 4,341,023,574,438,173/76,128,034.10
  6. Step 6: Final answer
    x = 57,022,667.48

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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.