Home / 139,968,125.20-209,952,187.80-130,898,198.80

Finding the Fourth Proportional to 139,968,125.20, 209,952,187.80 and 130,898,198.80

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Solution

The fourth proportional to 139,968,125.20, 209,952,187.80 and 130,898,198.80 is: 196,347,298.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,125.20 : 209,952,187.80 = 130,898,198.80 : x
  2. Step 2: Convert to fraction form
    139,968,125.20/209,952,187.80 = 130,898,198.80/x
  3. Step 3: Cross multiply
    139,968,125.20x = 209,952,187.80 × 130,898,198.80
  4. Step 4: Simplify right side
    139,968,125.20x = 27,482,363,217,139,336
  5. Step 5: Solve for x
    x = 27,482,363,217,139,336/139,968,125.20
  6. Step 6: Final answer
    x = 196,347,298.20

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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.