Home / 127,712,442.70-191,568,664.05-76,652,116.30

Finding the Fourth Proportional to 127,712,442.70, 191,568,664.05 and 76,652,116.30

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Solution

The fourth proportional to 127,712,442.70, 191,568,664.05 and 76,652,116.30 is: 114,978,174.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,712,442.70 : 191,568,664.05 = 76,652,116.30 : x
  2. Step 2: Convert to fraction form
    127,712,442.70/191,568,664.05 = 76,652,116.30/x
  3. Step 3: Cross multiply
    127,712,442.70x = 191,568,664.05 × 76,652,116.30
  4. Step 4: Simplify right side
    127,712,442.70x = 14,684,143,516,196,230
  5. Step 5: Solve for x
    x = 14,684,143,516,196,230/127,712,442.70
  6. Step 6: Final answer
    x = 114,978,174.45

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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.