Home / 66,362,515.20-99,543,772.80-18,493,459.20

Finding the Fourth Proportional to 66,362,515.20, 99,543,772.80 and 18,493,459.20

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Solution

The fourth proportional to 66,362,515.20, 99,543,772.80 and 18,493,459.20 is: 27,740,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,362,515.20 : 99,543,772.80 = 18,493,459.20 : x
  2. Step 2: Convert to fraction form
    66,362,515.20/99,543,772.80 = 18,493,459.20/x
  3. Step 3: Cross multiply
    66,362,515.20x = 99,543,772.80 × 18,493,459.20
  4. Step 4: Simplify right side
    66,362,515.20x = 1,840,908,700,890,869.75
  5. Step 5: Solve for x
    x = 1,840,908,700,890,869.75/66,362,515.20
  6. Step 6: Final answer
    x = 27,740,188.80

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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.