Home / 13,140,358.32-19,745,529.54-7,079,743.92

Finding the Fourth Proportional to 13,140,358.32, 19,745,529.54 and 7,079,743.92

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Solution

The fourth proportional to 13,140,358.32, 19,745,529.54 and 7,079,743.92 is: 10,638,468.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140,358.32 : 19,745,529.54 = 7,079,743.92 : x
  2. Step 2: Convert to fraction form
    13,140,358.32/19,745,529.54 = 7,079,743.92/x
  3. Step 3: Cross multiply
    13,140,358.32x = 19,745,529.54 × 7,079,743.92
  4. Step 4: Simplify right side
    13,140,358.32x = 139,793,292,707,995.39
  5. Step 5: Solve for x
    x = 139,793,292,707,995.39/13,140,358.32
  6. Step 6: Final answer
    x = 10,638,468.85

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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.