Home / 66,561,639.40-99,795,219.90-30,187,455.40

Finding the Fourth Proportional to 66,561,639.40, 99,795,219.90 and 30,187,455.40

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Solution

The fourth proportional to 66,561,639.40, 99,795,219.90 and 30,187,455.40 is: 45,259,758.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,561,639.40 : 99,795,219.90 = 30,187,455.40 : x
  2. Step 2: Convert to fraction form
    66,561,639.40/99,795,219.90 = 30,187,455.40/x
  3. Step 3: Cross multiply
    66,561,639.40x = 99,795,219.90 × 30,187,455.40
  4. Step 4: Simplify right side
    66,561,639.40x = 3,012,563,749,864,442.50
  5. Step 5: Solve for x
    x = 3,012,563,749,864,442.50/66,561,639.40
  6. Step 6: Final answer
    x = 45,259,758.88

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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.