Home / 66,528,889.60-99,784,003.20-21,095,276.80

Finding the Fourth Proportional to 66,528,889.60, 99,784,003.20 and 21,095,276.80

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Solution

The fourth proportional to 66,528,889.60, 99,784,003.20 and 21,095,276.80 is: 31,639,956.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,528,889.60 : 99,784,003.20 = 21,095,276.80 : x
  2. Step 2: Convert to fraction form
    66,528,889.60/99,784,003.20 = 21,095,276.80/x
  3. Step 3: Cross multiply
    66,528,889.60x = 99,784,003.20 × 21,095,276.80
  4. Step 4: Simplify right side
    66,528,889.60x = 2,104,971,167,716,086
  5. Step 5: Solve for x
    x = 2,104,971,167,716,086/66,528,889.60
  6. Step 6: Final answer
    x = 31,639,956.42

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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.