Home / 13,343,895.36-18,415,511.52-7,542,724.68

Finding the Fourth Proportional to 13,343,895.36, 18,415,511.52 and 7,542,724.68

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Solution

The fourth proportional to 13,343,895.36, 18,415,511.52 and 7,542,724.68 is: 10,409,489.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343,895.36 : 18,415,511.52 = 7,542,724.68 : x
  2. Step 2: Convert to fraction form
    13,343,895.36/18,415,511.52 = 7,542,724.68/x
  3. Step 3: Cross multiply
    13,343,895.36x = 18,415,511.52 × 7,542,724.68
  4. Step 4: Simplify right side
    13,343,895.36x = 138,903,133,236,728.31
  5. Step 5: Solve for x
    x = 138,903,133,236,728.31/13,343,895.36
  6. Step 6: Final answer
    x = 10,409,489.10

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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.