Home / 76,867,353.36-115,302,366.48-28,320,218.16

Finding the Fourth Proportional to 76,867,353.36, 115,302,366.48 and 28,320,218.16

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Solution

The fourth proportional to 76,867,353.36, 115,302,366.48 and 28,320,218.16 is: 42,480,819.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,867,353.36 : 115,302,366.48 = 28,320,218.16 : x
  2. Step 2: Convert to fraction form
    76,867,353.36/115,302,366.48 = 28,320,218.16/x
  3. Step 3: Cross multiply
    76,867,353.36x = 115,302,366.48 × 28,320,218.16
  4. Step 4: Simplify right side
    76,867,353.36x = 3,265,388,173,077,871.50
  5. Step 5: Solve for x
    x = 3,265,388,173,077,871.50/76,867,353.36
  6. Step 6: Final answer
    x = 42,480,819.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.