Home / 452,289,338.20-678,434,007.30-406,372,835.80

Finding the Fourth Proportional to 452,289,338.20, 678,434,007.30 and 406,372,835.80

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Solution

The fourth proportional to 452,289,338.20, 678,434,007.30 and 406,372,835.80 is: 609,559,253.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,289,338.20 : 678,434,007.30 = 406,372,835.80 : x
  2. Step 2: Convert to fraction form
    452,289,338.20/678,434,007.30 = 406,372,835.80/x
  3. Step 3: Cross multiply
    452,289,338.20x = 678,434,007.30 × 406,372,835.80
  4. Step 4: Simplify right side
    452,289,338.20x = 275,697,151,449,658,880
  5. Step 5: Solve for x
    x = 275,697,151,449,658,880/452,289,338.20
  6. Step 6: Final answer
    x = 609,559,253.70

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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.