Home / 318,541,950.80-439,353,178.44-240,228,800.72

Finding the Fourth Proportional to 318,541,950.80, 439,353,178.44 and 240,228,800.72

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Solution

The fourth proportional to 318,541,950.80, 439,353,178.44 and 240,228,800.72 is: 331,338,735.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,541,950.80 : 439,353,178.44 = 240,228,800.72 : x
  2. Step 2: Convert to fraction form
    318,541,950.80/439,353,178.44 = 240,228,800.72/x
  3. Step 3: Cross multiply
    318,541,950.80x = 439,353,178.44 × 240,228,800.72
  4. Step 4: Simplify right side
    318,541,950.80x = 105,545,287,149,161,360
  5. Step 5: Solve for x
    x = 105,545,287,149,161,360/318,541,950.80
  6. Step 6: Final answer
    x = 331,338,735.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.