Home / 149,563,382.55-206,431,905.30-87,703,650.15

Finding the Fourth Proportional to 149,563,382.55, 206,431,905.30 and 87,703,650.15

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Solution

The fourth proportional to 149,563,382.55, 206,431,905.30 and 87,703,650.15 is: 121,051,231.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,563,382.55 : 206,431,905.30 = 87,703,650.15 : x
  2. Step 2: Convert to fraction form
    149,563,382.55/206,431,905.30 = 87,703,650.15/x
  3. Step 3: Cross multiply
    149,563,382.55x = 206,431,905.30 × 87,703,650.15
  4. Step 4: Simplify right side
    149,563,382.55x = 18,104,831,602,229,132
  5. Step 5: Solve for x
    x = 18,104,831,602,229,132/149,563,382.55
  6. Step 6: Final answer
    x = 121,051,231.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.