Home / 21,859,028.81-30,165,605.58-11,935,980.39

Finding the Fourth Proportional to 21,859,028.81, 30,165,605.58 and 11,935,980.39

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Solution

The fourth proportional to 21,859,028.81, 30,165,605.58 and 11,935,980.39 is: 16,471,732.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,859,028.81 : 30,165,605.58 = 11,935,980.39 : x
  2. Step 2: Convert to fraction form
    21,859,028.81/30,165,605.58 = 11,935,980.39/x
  3. Step 3: Cross multiply
    21,859,028.81x = 30,165,605.58 × 11,935,980.39
  4. Step 4: Simplify right side
    21,859,028.81x = 360,056,076,595,674.69
  5. Step 5: Solve for x
    x = 360,056,076,595,674.69/21,859,028.81
  6. Step 6: Final answer
    x = 16,471,732.56

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1.5x scale

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.