Home / 66,510,043.20-99,765,064.80-43,816,564.80

Finding the Fourth Proportional to 66,510,043.20, 99,765,064.80 and 43,816,564.80

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Solution

The fourth proportional to 66,510,043.20, 99,765,064.80 and 43,816,564.80 is: 65,724,847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,510,043.20 : 99,765,064.80 = 43,816,564.80 : x
  2. Step 2: Convert to fraction form
    66,510,043.20/99,765,064.80 = 43,816,564.80/x
  3. Step 3: Cross multiply
    66,510,043.20x = 99,765,064.80 × 43,816,564.80
  4. Step 4: Simplify right side
    66,510,043.20x = 4,371,362,426,585,398.50
  5. Step 5: Solve for x
    x = 4,371,362,426,585,398.50/66,510,043.20
  6. Step 6: Final answer
    x = 65,724,847.20

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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.