Home / 320,206,857.28-441,885,840.96-173,529,141.28

Finding the Fourth Proportional to 320,206,857.28, 441,885,840.96 and 173,529,141.28

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Solution

The fourth proportional to 320,206,857.28, 441,885,840.96 and 173,529,141.28 is: 239,470,419.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,206,857.28 : 441,885,840.96 = 173,529,141.28 : x
  2. Step 2: Convert to fraction form
    320,206,857.28/441,885,840.96 = 173,529,141.28/x
  3. Step 3: Cross multiply
    320,206,857.28x = 441,885,840.96 × 173,529,141.28
  4. Step 4: Simplify right side
    320,206,857.28x = 76,680,070,525,579,440
  5. Step 5: Solve for x
    x = 76,680,070,525,579,440/320,206,857.28
  6. Step 6: Final answer
    x = 239,470,419.77

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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.