Home / 149,563,416.82-206,431,952.59-87,703,684.42

Finding the Fourth Proportional to 149,563,416.82, 206,431,952.59 and 87,703,684.42

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Solution

The fourth proportional to 149,563,416.82, 206,431,952.59 and 87,703,684.42 is: 121,051,278.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,563,416.82 : 206,431,952.59 = 87,703,684.42 : x
  2. Step 2: Convert to fraction form
    149,563,416.82/206,431,952.59 = 87,703,684.42/x
  3. Step 3: Cross multiply
    149,563,416.82x = 206,431,952.59 × 87,703,684.42
  4. Step 4: Simplify right side
    149,563,416.82x = 18,104,842,824,157,764
  5. Step 5: Solve for x
    x = 18,104,842,824,157,764/149,563,416.82
  6. Step 6: Final answer
    x = 121,051,278.51

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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.