Home / 415,977,654.80-623,798,520.60-143,208,016.40

Finding the Fourth Proportional to 415,977,654.80, 623,798,520.60 and 143,208,016.40

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Solution

The fourth proportional to 415,977,654.80, 623,798,520.60 and 143,208,016.40 is: 214,754,200.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,977,654.80 : 623,798,520.60 = 143,208,016.40 : x
  2. Step 2: Convert to fraction form
    415,977,654.80/623,798,520.60 = 143,208,016.40/x
  3. Step 3: Cross multiply
    415,977,654.80x = 623,798,520.60 × 143,208,016.40
  4. Step 4: Simplify right side
    415,977,654.80x = 89,332,948,768,380,544
  5. Step 5: Solve for x
    x = 89,332,948,768,380,544/415,977,654.80
  6. Step 6: Final answer
    x = 214,754,200.71

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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.