Home / 13,331,420.96-18,398,857.12-7,530,576.32

Finding the Fourth Proportional to 13,331,420.96, 18,398,857.12 and 7,530,576.32

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Solution

The fourth proportional to 13,331,420.96, 18,398,857.12 and 7,530,576.32 is: 10,393,040.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331,420.96 : 18,398,857.12 = 7,530,576.32 : x
  2. Step 2: Convert to fraction form
    13,331,420.96/18,398,857.12 = 7,530,576.32/x
  3. Step 3: Cross multiply
    13,331,420.96x = 18,398,857.12 × 7,530,576.32
  4. Step 4: Simplify right side
    13,331,420.96x = 138,553,997,742,935.41
  5. Step 5: Solve for x
    x = 138,553,997,742,935.41/13,331,420.96
  6. Step 6: Final answer
    x = 10,393,040.48

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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.