Home / 66,680,819.30-100,020,667.26-52,119,986.60

Finding the Fourth Proportional to 66,680,819.30, 100,020,667.26 and 52,119,986.60

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Solution

The fourth proportional to 66,680,819.30, 100,020,667.26 and 52,119,986.60 is: 78,179,540.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,680,819.30 : 100,020,667.26 = 52,119,986.60 : x
  2. Step 2: Convert to fraction form
    66,680,819.30/100,020,667.26 = 52,119,986.60/x
  3. Step 3: Cross multiply
    66,680,819.30x = 100,020,667.26 × 52,119,986.60
  4. Step 4: Simplify right side
    66,680,819.30x = 5,213,075,837,314,259
  5. Step 5: Solve for x
    x = 5,213,075,837,314,259/66,680,819.30
  6. Step 6: Final answer
    x = 78,179,540.86

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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.