Home / 85,293,090.40-127,939,635.60-30,714,099.70

Finding the Fourth Proportional to 85,293,090.40, 127,939,635.60 and 30,714,099.70

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Solution

The fourth proportional to 85,293,090.40, 127,939,635.60 and 30,714,099.70 is: 46,071,149.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,293,090.40 : 127,939,635.60 = 30,714,099.70 : x
  2. Step 2: Convert to fraction form
    85,293,090.40/127,939,635.60 = 30,714,099.70/x
  3. Step 3: Cross multiply
    85,293,090.40x = 127,939,635.60 × 30,714,099.70
  4. Step 4: Simplify right side
    85,293,090.40x = 3,929,550,723,400,069
  5. Step 5: Solve for x
    x = 3,929,550,723,400,069/85,293,090.40
  6. Step 6: Final answer
    x = 46,071,149.55

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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.