Home / 85,669,150.82-128,515,927.86-26,586,635.90

Finding the Fourth Proportional to 85,669,150.82, 128,515,927.86 and 26,586,635.90

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Solution

The fourth proportional to 85,669,150.82, 128,515,927.86 and 26,586,635.90 is: 39,883,740.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,669,150.82 : 128,515,927.86 = 26,586,635.90 : x
  2. Step 2: Convert to fraction form
    85,669,150.82/128,515,927.86 = 26,586,635.90/x
  3. Step 3: Cross multiply
    85,669,150.82x = 128,515,927.86 × 26,586,635.90
  4. Step 4: Simplify right side
    85,669,150.82x = 3,416,806,180,655,440
  5. Step 5: Solve for x
    x = 3,416,806,180,655,440/85,669,150.82
  6. Step 6: Final answer
    x = 39,883,740.51

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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.