Home / 5,170,981.86-7,128,299.25-3,310,123.50

Finding the Fourth Proportional to 5,170,981.86, 7,128,299.25 and 3,310,123.50

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Solution

The fourth proportional to 5,170,981.86, 7,128,299.25 and 3,310,123.50 is: 4,563,069.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170,981.86 : 7,128,299.25 = 3,310,123.50 : x
  2. Step 2: Convert to fraction form
    5,170,981.86/7,128,299.25 = 3,310,123.50/x
  3. Step 3: Cross multiply
    5,170,981.86x = 7,128,299.25 × 3,310,123.50
  4. Step 4: Simplify right side
    5,170,981.86x = 23,595,550,862,457.38
  5. Step 5: Solve for x
    x = 23,595,550,862,457.38/5,170,981.86
  6. Step 6: Final answer
    x = 4,563,069.74

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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.