Home / 525,401,854.60-788,102,781.90-218,591,998.60

Finding the Fourth Proportional to 525,401,854.60, 788,102,781.90 and 218,591,998.60

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Solution

The fourth proportional to 525,401,854.60, 788,102,781.90 and 218,591,998.60 is: 327,887,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,401,854.60 : 788,102,781.90 = 218,591,998.60 : x
  2. Step 2: Convert to fraction form
    525,401,854.60/788,102,781.90 = 218,591,998.60/x
  3. Step 3: Cross multiply
    525,401,854.60x = 788,102,781.90 × 218,591,998.60
  4. Step 4: Simplify right side
    525,401,854.60x = 172,272,962,197,740,896
  5. Step 5: Solve for x
    x = 172,272,962,197,740,896/525,401,854.60
  6. Step 6: Final answer
    x = 327,887,997.90

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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.