Home / 10,138,947.94-15,152,757.64-7,412,235.56

Finding the Fourth Proportional to 10,138,947.94, 15,152,757.64 and 7,412,235.56

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Solution

The fourth proportional to 10,138,947.94, 15,152,757.64 and 7,412,235.56 is: 11,077,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138,947.94 : 15,152,757.64 = 7,412,235.56 : x
  2. Step 2: Convert to fraction form
    10,138,947.94/15,152,757.64 = 7,412,235.56/x
  3. Step 3: Cross multiply
    10,138,947.94x = 15,152,757.64 × 7,412,235.56
  4. Step 4: Simplify right side
    10,138,947.94x = 112,315,808,916,975.30
  5. Step 5: Solve for x
    x = 112,315,808,916,975.30/10,138,947.94
  6. Step 6: Final answer
    x = 11,077,659.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.