Home / 18,829,985.45-28,247,602.58-8,047,200.65

Finding the Fourth Proportional to 18,829,985.45, 28,247,602.58 and 8,047,200.65

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Solution

The fourth proportional to 18,829,985.45, 28,247,602.58 and 8,047,200.65 is: 12,071,922.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829,985.45 : 28,247,602.58 = 8,047,200.65 : x
  2. Step 2: Convert to fraction form
    18,829,985.45/28,247,602.58 = 8,047,200.65/x
  3. Step 3: Cross multiply
    18,829,985.45x = 28,247,602.58 × 8,047,200.65
  4. Step 4: Simplify right side
    18,829,985.45x = 227,314,125,802,481.69
  5. Step 5: Solve for x
    x = 227,314,125,802,481.69/18,829,985.45
  6. Step 6: Final answer
    x = 12,071,922.54

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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.