Home / 13,578,946.59-18,739,169.58-7,384,116

Finding the Fourth Proportional to 13,578,946.59, 18,739,169.58 and 7,384,116

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Solution

The fourth proportional to 13,578,946.59, 18,739,169.58 and 7,384,116 is: 10,190,201.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578,946.59 : 18,739,169.58 = 7,384,116 : x
  2. Step 2: Convert to fraction form
    13,578,946.59/18,739,169.58 = 7,384,116/x
  3. Step 3: Cross multiply
    13,578,946.59x = 18,739,169.58 × 7,384,116
  4. Step 4: Simplify right side
    13,578,946.59x = 138,372,201,922,391.27
  5. Step 5: Solve for x
    x = 138,372,201,922,391.27/13,578,946.59
  6. Step 6: Final answer
    x = 10,190,201.50

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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.