Home / 13,141,461.28-18,135,023.76-7,340,324.32

Finding the Fourth Proportional to 13,141,461.28, 18,135,023.76 and 7,340,324.32

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Solution

The fourth proportional to 13,141,461.28, 18,135,023.76 and 7,340,324.32 is: 10,129,539.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,141,461.28 : 18,135,023.76 = 7,340,324.32 : x
  2. Step 2: Convert to fraction form
    13,141,461.28/18,135,023.76 = 7,340,324.32/x
  3. Step 3: Cross multiply
    13,141,461.28x = 18,135,023.76 × 7,340,324.32
  4. Step 4: Simplify right side
    13,141,461.28x = 133,116,955,949,305.86
  5. Step 5: Solve for x
    x = 133,116,955,949,305.86/13,141,461.28
  6. Step 6: Final answer
    x = 10,129,539.87

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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.