Home / 143,868,992.29-198,531,057.67-81,141,341.07

Finding the Fourth Proportional to 143,868,992.29, 198,531,057.67 and 81,141,341.07

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Solution

The fourth proportional to 143,868,992.29, 198,531,057.67 and 81,141,341.07 is: 111,970,453.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,868,992.29 : 198,531,057.67 = 81,141,341.07 : x
  2. Step 2: Convert to fraction form
    143,868,992.29/198,531,057.67 = 81,141,341.07/x
  3. Step 3: Cross multiply
    143,868,992.29x = 198,531,057.67 × 81,141,341.07
  4. Step 4: Simplify right side
    143,868,992.29x = 16,109,076,263,389,308
  5. Step 5: Solve for x
    x = 16,109,076,263,389,308/143,868,992.29
  6. Step 6: Final answer
    x = 111,970,453.17

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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.