Home / 76,719,129.32-115,078,769.58-21,384,754.76

Finding the Fourth Proportional to 76,719,129.32, 115,078,769.58 and 21,384,754.76

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Solution

The fourth proportional to 76,719,129.32, 115,078,769.58 and 21,384,754.76 is: 32,077,153.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,719,129.32 : 115,078,769.58 = 21,384,754.76 : x
  2. Step 2: Convert to fraction form
    76,719,129.32/115,078,769.58 = 21,384,754.76/x
  3. Step 3: Cross multiply
    76,719,129.32x = 115,078,769.58 × 21,384,754.76
  4. Step 4: Simplify right side
    76,719,129.32x = 2,460,931,265,550,848.50
  5. Step 5: Solve for x
    x = 2,460,931,265,550,848.50/76,719,129.32
  6. Step 6: Final answer
    x = 32,077,153.21

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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.