Home / 40,465,383.15-55,842,189.15-21,880,478.89

Finding the Fourth Proportional to 40,465,383.15, 55,842,189.15 and 21,880,478.89

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Solution

The fourth proportional to 40,465,383.15, 55,842,189.15 and 21,880,478.89 is: 30,195,039.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,465,383.15 : 55,842,189.15 = 21,880,478.89 : x
  2. Step 2: Convert to fraction form
    40,465,383.15/55,842,189.15 = 21,880,478.89/x
  3. Step 3: Cross multiply
    40,465,383.15x = 55,842,189.15 × 21,880,478.89
  4. Step 4: Simplify right side
    40,465,383.15x = 1,221,853,840,867,962
  5. Step 5: Solve for x
    x = 1,221,853,840,867,962/40,465,383.15
  6. Step 6: Final answer
    x = 30,195,039.46

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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.