Home / 66,004,216.80-99,015,656.40-20,561,272.80

Finding the Fourth Proportional to 66,004,216.80, 99,015,656.40 and 20,561,272.80

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Solution

The fourth proportional to 66,004,216.80, 99,015,656.40 and 20,561,272.80 is: 30,844,816.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,004,216.80 : 99,015,656.40 = 20,561,272.80 : x
  2. Step 2: Convert to fraction form
    66,004,216.80/99,015,656.40 = 20,561,272.80/x
  3. Step 3: Cross multiply
    66,004,216.80x = 99,015,656.40 × 20,561,272.80
  4. Step 4: Simplify right side
    66,004,216.80x = 2,035,887,922,711,466
  5. Step 5: Solve for x
    x = 2,035,887,922,711,466/66,004,216.80
  6. Step 6: Final answer
    x = 30,844,816.00

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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.