Home / 85,293,106.60-127,939,659.90-71,121,346.60

Finding the Fourth Proportional to 85,293,106.60, 127,939,659.90 and 71,121,346.60

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Solution

The fourth proportional to 85,293,106.60, 127,939,659.90 and 71,121,346.60 is: 106,682,019.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,293,106.60 : 127,939,659.90 = 71,121,346.60 : x
  2. Step 2: Convert to fraction form
    85,293,106.60/127,939,659.90 = 71,121,346.60/x
  3. Step 3: Cross multiply
    85,293,106.60x = 127,939,659.90 × 71,121,346.60
  4. Step 4: Simplify right side
    85,293,106.60x = 9,099,240,895,634,022
  5. Step 5: Solve for x
    x = 9,099,240,895,634,022/85,293,106.60
  6. Step 6: Final answer
    x = 106,682,019.90

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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.