Home / 66,570,856.20-99,856,284.30-40,928,718.60

Finding the Fourth Proportional to 66,570,856.20, 99,856,284.30 and 40,928,718.60

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Solution

The fourth proportional to 66,570,856.20, 99,856,284.30 and 40,928,718.60 is: 61,393,077.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,570,856.20 : 99,856,284.30 = 40,928,718.60 : x
  2. Step 2: Convert to fraction form
    66,570,856.20/99,856,284.30 = 40,928,718.60/x
  3. Step 3: Cross multiply
    66,570,856.20x = 99,856,284.30 × 40,928,718.60
  4. Step 4: Simplify right side
    66,570,856.20x = 4,086,989,760,556,298
  5. Step 5: Solve for x
    x = 4,086,989,760,556,298/66,570,856.20
  6. Step 6: Final answer
    x = 61,393,077.90

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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.