Home / 65,781,113.76-90,777,938.81-36,412,446.33

Finding the Fourth Proportional to 65,781,113.76, 90,777,938.81 and 36,412,446.33

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Solution

The fourth proportional to 65,781,113.76, 90,777,938.81 and 36,412,446.33 is: 50,249,176.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,781,113.76 : 90,777,938.81 = 36,412,446.33 : x
  2. Step 2: Convert to fraction form
    65,781,113.76/90,777,938.81 = 36,412,446.33/x
  3. Step 3: Cross multiply
    65,781,113.76x = 90,777,938.81 × 36,412,446.33
  4. Step 4: Simplify right side
    65,781,113.76x = 3,305,446,824,685,087
  5. Step 5: Solve for x
    x = 3,305,446,824,685,087/65,781,113.76
  6. Step 6: Final answer
    x = 50,249,176.94

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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.