Home / 18,788,126.06-28,134,347.09-12,378,947.60

Finding the Fourth Proportional to 18,788,126.06, 28,134,347.09 and 12,378,947.60

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Solution

The fourth proportional to 18,788,126.06, 28,134,347.09 and 12,378,947.60 is: 18,536,899.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788,126.06 : 28,134,347.09 = 12,378,947.60 : x
  2. Step 2: Convert to fraction form
    18,788,126.06/28,134,347.09 = 12,378,947.60/x
  3. Step 3: Cross multiply
    18,788,126.06x = 28,134,347.09 × 12,378,947.60
  4. Step 4: Simplify right side
    18,788,126.06x = 348,273,608,184,756.06
  5. Step 5: Solve for x
    x = 348,273,608,184,756.06/18,788,126.06
  6. Step 6: Final answer
    x = 18,536,899.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.