Home / 85,643,163.60-128,427,420.60-34,508,187.60

Finding the Fourth Proportional to 85,643,163.60, 128,427,420.60 and 34,508,187.60

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Solution

The fourth proportional to 85,643,163.60, 128,427,420.60 and 34,508,187.60 is: 51,747,242.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,643,163.60 : 128,427,420.60 = 34,508,187.60 : x
  2. Step 2: Convert to fraction form
    85,643,163.60/128,427,420.60 = 34,508,187.60/x
  3. Step 3: Cross multiply
    85,643,163.60x = 128,427,420.60 × 34,508,187.60
  4. Step 4: Simplify right side
    85,643,163.60x = 4,431,797,523,048,904.50
  5. Step 5: Solve for x
    x = 4,431,797,523,048,904.50/85,643,163.60
  6. Step 6: Final answer
    x = 51,747,242.12

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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.