Home / 12,128,227.20-18,176,607.36-4,931,383.68

Finding the Fourth Proportional to 12,128,227.20, 18,176,607.36 and 4,931,383.68

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Solution

The fourth proportional to 12,128,227.20, 18,176,607.36 and 4,931,383.68 is: 7,390,678.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,227.20 : 18,176,607.36 = 4,931,383.68 : x
  2. Step 2: Convert to fraction form
    12,128,227.20/18,176,607.36 = 4,931,383.68/x
  3. Step 3: Cross multiply
    12,128,227.20x = 18,176,607.36 × 4,931,383.68
  4. Step 4: Simplify right side
    12,128,227.20x = 89,635,824,892,871.88
  5. Step 5: Solve for x
    x = 89,635,824,892,871.88/12,128,227.20
  6. Step 6: Final answer
    x = 7,390,678.24

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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.