Home / 12,357,111.70-18,535,667.55-10,257,591.70

Finding the Fourth Proportional to 12,357,111.70, 18,535,667.55 and 10,257,591.70

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Solution

The fourth proportional to 12,357,111.70, 18,535,667.55 and 10,257,591.70 is: 15,386,387.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357,111.70 : 18,535,667.55 = 10,257,591.70 : x
  2. Step 2: Convert to fraction form
    12,357,111.70/18,535,667.55 = 10,257,591.70/x
  3. Step 3: Cross multiply
    12,357,111.70x = 18,535,667.55 × 10,257,591.70
  4. Step 4: Simplify right side
    12,357,111.70x = 190,131,309,614,839.34
  5. Step 5: Solve for x
    x = 190,131,309,614,839.34/12,357,111.70
  6. Step 6: Final answer
    x = 15,386,387.55

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Similar ratio
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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.