Home / 213,479,849.40-320,219,774.10-126,181,807.80

Finding the Fourth Proportional to 213,479,849.40, 320,219,774.10 and 126,181,807.80

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Solution

The fourth proportional to 213,479,849.40, 320,219,774.10 and 126,181,807.80 is: 189,272,711.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,479,849.40 : 320,219,774.10 = 126,181,807.80 : x
  2. Step 2: Convert to fraction form
    213,479,849.40/320,219,774.10 = 126,181,807.80/x
  3. Step 3: Cross multiply
    213,479,849.40x = 320,219,774.10 × 126,181,807.80
  4. Step 4: Simplify right side
    213,479,849.40x = 40,405,909,989,245,624
  5. Step 5: Solve for x
    x = 40,405,909,989,245,624/213,479,849.40
  6. Step 6: Final answer
    x = 189,272,711.70

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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.