Home / 5,157,757,986.96-7,117,730,125.64-2,930,212,406.64

Finding the Fourth Proportional to 5,157,757,986.96, 7,117,730,125.64 and 2,930,212,406.64

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Solution

The fourth proportional to 5,157,757,986.96, 7,117,730,125.64 and 2,930,212,406.64 is: 4,043,706,814.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157,757,986.96 : 7,117,730,125.64 = 2,930,212,406.64 : x
  2. Step 2: Convert to fraction form
    5,157,757,986.96/7,117,730,125.64 = 2,930,212,406.64/x
  3. Step 3: Cross multiply
    5,157,757,986.96x = 7,117,730,125.64 × 2,930,212,406.64
  4. Step 4: Simplify right side
    5,157,757,986.96x = 20,856,461,121,265,614,848
  5. Step 5: Solve for x
    x = 20,856,461,121,265,614,848/5,157,757,986.96
  6. Step 6: Final answer
    x = 4,043,706,814.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.