Home / 86,954,126,906.40-130,431,190,359.60-85,484,798,829.60

Finding the Fourth Proportional to 86,954,126,906.40, 130,431,190,359.60 and 85,484,798,829.60

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Solution

The fourth proportional to 86,954,126,906.40, 130,431,190,359.60 and 85,484,798,829.60 is: 128,227,198,244.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,954,126,906.40 : 130,431,190,359.60 = 85,484,798,829.60 : x
  2. Step 2: Convert to fraction form
    86,954,126,906.40/130,431,190,359.60 = 85,484,798,829.60/x
  3. Step 3: Cross multiply
    86,954,126,906.40x = 130,431,190,359.60 × 85,484,798,829.60
  4. Step 4: Simplify right side
    86,954,126,906.40x = 11,149,884,068,995,669,164,032
  5. Step 5: Solve for x
    x = 11,149,884,068,995,669,164,032/86,954,126,906.40
  6. Step 6: Final answer
    x = 128,227,198,244.40

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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.