Home / 191,672,860.21-287,539,016.50-81,008,995.96

Finding the Fourth Proportional to 191,672,860.21, 287,539,016.50 and 81,008,995.96

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Solution

The fourth proportional to 191,672,860.21, 287,539,016.50 and 81,008,995.96 is: 121,526,057.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,672,860.21 : 287,539,016.50 = 81,008,995.96 : x
  2. Step 2: Convert to fraction form
    191,672,860.21/287,539,016.50 = 81,008,995.96/x
  3. Step 3: Cross multiply
    191,672,860.21x = 287,539,016.50 × 81,008,995.96
  4. Step 4: Simplify right side
    191,672,860.21x = 23,293,247,026,451,564
  5. Step 5: Solve for x
    x = 23,293,247,026,451,564/191,672,860.21
  6. Step 6: Final answer
    x = 121,526,057.48

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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.