Home / 686,510,998.02-1,029,656,173.68-188,405,133.03

Finding the Fourth Proportional to 686,510,998.02, 1,029,656,173.68 and 188,405,133.03

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Solution

The fourth proportional to 686,510,998.02, 1,029,656,173.68 and 188,405,133.03 is: 282,577,422.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,510,998.02 : 1,029,656,173.68 = 188,405,133.03 : x
  2. Step 2: Convert to fraction form
    686,510,998.02/1,029,656,173.68 = 188,405,133.03/x
  3. Step 3: Cross multiply
    686,510,998.02x = 1,029,656,173.68 × 188,405,133.03
  4. Step 4: Simplify right side
    686,510,998.02x = 193,992,508,377,341,184
  5. Step 5: Solve for x
    x = 193,992,508,377,341,184/686,510,998.02
  6. Step 6: Final answer
    x = 282,577,422.56

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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.