Home / 76,128,530.52-105,057,457.20-41,321,211.72

Finding the Fourth Proportional to 76,128,530.52, 105,057,457.20 and 41,321,211.72

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Solution

The fourth proportional to 76,128,530.52, 105,057,457.20 and 41,321,211.72 is: 57,023,318.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,128,530.52 : 105,057,457.20 = 41,321,211.72 : x
  2. Step 2: Convert to fraction form
    76,128,530.52/105,057,457.20 = 41,321,211.72/x
  3. Step 3: Cross multiply
    76,128,530.52x = 105,057,457.20 × 41,321,211.72
  4. Step 4: Simplify right side
    76,128,530.52x = 4,341,101,431,726,038.50
  5. Step 5: Solve for x
    x = 4,341,101,431,726,038.50/76,128,530.52
  6. Step 6: Final answer
    x = 57,023,318.35

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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.