Home / 85,100,580,971.60-127,650,871,457.40-51,578,132,997.20

Finding the Fourth Proportional to 85,100,580,971.60, 127,650,871,457.40 and 51,578,132,997.20

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Solution

The fourth proportional to 85,100,580,971.60, 127,650,871,457.40 and 51,578,132,997.20 is: 77,367,199,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,100,580,971.60 : 127,650,871,457.40 = 51,578,132,997.20 : x
  2. Step 2: Convert to fraction form
    85,100,580,971.60/127,650,871,457.40 = 51,578,132,997.20/x
  3. Step 3: Cross multiply
    85,100,580,971.60x = 127,650,871,457.40 × 51,578,132,997.20
  4. Step 4: Simplify right side
    85,100,580,971.60x = 6,583,993,625,238,257,532,928
  5. Step 5: Solve for x
    x = 6,583,993,625,238,257,532,928/85,100,580,971.60
  6. Step 6: Final answer
    x = 77,367,199,495.80

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Double scale
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Similar ratio
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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.