Home / 66,213,605.76-91,323,011.52-43,016,206.92

Finding the Fourth Proportional to 66,213,605.76, 91,323,011.52 and 43,016,206.92

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Solution

The fourth proportional to 66,213,605.76, 91,323,011.52 and 43,016,206.92 is: 59,328,736.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,213,605.76 : 91,323,011.52 = 43,016,206.92 : x
  2. Step 2: Convert to fraction form
    66,213,605.76/91,323,011.52 = 43,016,206.92/x
  3. Step 3: Cross multiply
    66,213,605.76x = 91,323,011.52 × 43,016,206.92
  4. Step 4: Simplify right side
    66,213,605.76x = 3,928,369,560,101,863.50
  5. Step 5: Solve for x
    x = 3,928,369,560,101,863.50/66,213,605.76
  6. Step 6: Final answer
    x = 59,328,736.37

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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.