Home / 139,969,155.80-209,953,733.70-49,059,939.80

Finding the Fourth Proportional to 139,969,155.80, 209,953,733.70 and 49,059,939.80

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Solution

The fourth proportional to 139,969,155.80, 209,953,733.70 and 49,059,939.80 is: 73,589,909.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,155.80 : 209,953,733.70 = 49,059,939.80 : x
  2. Step 2: Convert to fraction form
    139,969,155.80/209,953,733.70 = 49,059,939.80/x
  3. Step 3: Cross multiply
    139,969,155.80x = 209,953,733.70 × 49,059,939.80
  4. Step 4: Simplify right side
    139,969,155.80x = 10,300,317,536,107,230
  5. Step 5: Solve for x
    x = 10,300,317,536,107,230/139,969,155.80
  6. Step 6: Final answer
    x = 73,589,909.70

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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.