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Finding the Fourth Proportional to 66,662,751.06, 99,940,315.32 and 61,281,911.34

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Solution

The fourth proportional to 66,662,751.06, 99,940,315.32 and 61,281,911.34 is: 91,873,399.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,662,751.06 : 99,940,315.32 = 61,281,911.34 : x
  2. Step 2: Convert to fraction form
    66,662,751.06/99,940,315.32 = 61,281,911.34/x
  3. Step 3: Cross multiply
    66,662,751.06x = 99,940,315.32 × 61,281,911.34
  4. Step 4: Simplify right side
    66,662,751.06x = 6,124,533,542,731,884
  5. Step 5: Solve for x
    x = 6,124,533,542,731,884/66,662,751.06
  6. Step 6: Final answer
    x = 91,873,399.24

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