Home / 452,289,332.70-678,433,999.05-406,372,830.30

Finding the Fourth Proportional to 452,289,332.70, 678,433,999.05 and 406,372,830.30

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Solution

The fourth proportional to 452,289,332.70, 678,433,999.05 and 406,372,830.30 is: 609,559,245.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,289,332.70 : 678,433,999.05 = 406,372,830.30 : x
  2. Step 2: Convert to fraction form
    452,289,332.70/678,433,999.05 = 406,372,830.30/x
  3. Step 3: Cross multiply
    452,289,332.70x = 678,433,999.05 × 406,372,830.30
  4. Step 4: Simplify right side
    452,289,332.70x = 275,697,144,365,696,000
  5. Step 5: Solve for x
    x = 275,697,144,365,696,000/452,289,332.70
  6. Step 6: Final answer
    x = 609,559,245.45

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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.