Home / 20,765,756.57-28,657,334.59-11,598,989.81

Finding the Fourth Proportional to 20,765,756.57, 28,657,334.59 and 11,598,989.81

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Solution

The fourth proportional to 20,765,756.57, 28,657,334.59 and 11,598,989.81 is: 16,006,935.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,765,756.57 : 28,657,334.59 = 11,598,989.81 : x
  2. Step 2: Convert to fraction form
    20,765,756.57/28,657,334.59 = 11,598,989.81/x
  3. Step 3: Cross multiply
    20,765,756.57x = 28,657,334.59 × 11,598,989.81
  4. Step 4: Simplify right side
    20,765,756.57x = 332,396,131,718,886.38
  5. Step 5: Solve for x
    x = 332,396,131,718,886.38/20,765,756.57
  6. Step 6: Final answer
    x = 16,006,935.78

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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.