Home / 21,420,183.31-29,559,550.31-12,127,513.59

Finding the Fourth Proportional to 21,420,183.31, 29,559,550.31 and 12,127,513.59

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Solution

The fourth proportional to 21,420,183.31, 29,559,550.31 and 12,127,513.59 is: 16,735,797.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,420,183.31 : 29,559,550.31 = 12,127,513.59 : x
  2. Step 2: Convert to fraction form
    21,420,183.31/29,559,550.31 = 12,127,513.59/x
  3. Step 3: Cross multiply
    21,420,183.31x = 29,559,550.31 × 12,127,513.59
  4. Step 4: Simplify right side
    21,420,183.31x = 358,483,848,098,813.69
  5. Step 5: Solve for x
    x = 358,483,848,098,813.69/21,420,183.31
  6. Step 6: Final answer
    x = 16,735,797.40

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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.