Home / 139,968,406.20-209,952,609.30-49,091,995.20

Finding the Fourth Proportional to 139,968,406.20, 209,952,609.30 and 49,091,995.20

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Solution

The fourth proportional to 139,968,406.20, 209,952,609.30 and 49,091,995.20 is: 73,637,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,406.20 : 209,952,609.30 = 49,091,995.20 : x
  2. Step 2: Convert to fraction form
    139,968,406.20/209,952,609.30 = 49,091,995.20/x
  3. Step 3: Cross multiply
    139,968,406.20x = 209,952,609.30 × 49,091,995.20
  4. Step 4: Simplify right side
    139,968,406.20x = 10,306,992,487,983,076
  5. Step 5: Solve for x
    x = 10,306,992,487,983,076/139,968,406.20
  6. Step 6: Final answer
    x = 73,637,992.80

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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.