Home / 442,868,417.80-664,302,626.70-305,118,910.60

Finding the Fourth Proportional to 442,868,417.80, 664,302,626.70 and 305,118,910.60

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Solution

The fourth proportional to 442,868,417.80, 664,302,626.70 and 305,118,910.60 is: 457,678,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,868,417.80 : 664,302,626.70 = 305,118,910.60 : x
  2. Step 2: Convert to fraction form
    442,868,417.80/664,302,626.70 = 305,118,910.60/x
  3. Step 3: Cross multiply
    442,868,417.80x = 664,302,626.70 × 305,118,910.60
  4. Step 4: Simplify right side
    442,868,417.80x = 202,691,293,767,422,496
  5. Step 5: Solve for x
    x = 202,691,293,767,422,496/442,868,417.80
  6. Step 6: Final answer
    x = 457,678,365.90

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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.