Home / 20,281,055.51-27,989,229.77-11,457,446.48

Finding the Fourth Proportional to 20,281,055.51, 27,989,229.77 and 11,457,446.48

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Solution

The fourth proportional to 20,281,055.51, 27,989,229.77 and 11,457,446.48 is: 15,812,051.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,281,055.51 : 27,989,229.77 = 11,457,446.48 : x
  2. Step 2: Convert to fraction form
    20,281,055.51/27,989,229.77 = 11,457,446.48/x
  3. Step 3: Cross multiply
    20,281,055.51x = 27,989,229.77 × 11,457,446.48
  4. Step 4: Simplify right side
    20,281,055.51x = 320,685,102,007,581
  5. Step 5: Solve for x
    x = 320,685,102,007,581/20,281,055.51
  6. Step 6: Final answer
    x = 15,812,051.89

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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.