Home / 85,100,545,998.60-127,650,818,997.90-83,939,595,419.40

Finding the Fourth Proportional to 85,100,545,998.60, 127,650,818,997.90 and 83,939,595,419.40

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Solution

The fourth proportional to 85,100,545,998.60, 127,650,818,997.90 and 83,939,595,419.40 is: 125,909,393,129.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,100,545,998.60 : 127,650,818,997.90 = 83,939,595,419.40 : x
  2. Step 2: Convert to fraction form
    85,100,545,998.60/127,650,818,997.90 = 83,939,595,419.40/x
  3. Step 3: Cross multiply
    85,100,545,998.60x = 127,650,818,997.90 × 83,939,595,419.40
  4. Step 4: Simplify right side
    85,100,545,998.60x = 10,714,958,101,638,784,483,328
  5. Step 5: Solve for x
    x = 10,714,958,101,638,784,483,328/85,100,545,998.60
  6. Step 6: Final answer
    x = 125,909,393,129.10

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1.5x scale

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.