Home / 442,868,408.40-664,302,612.60-258,446,571.60

Finding the Fourth Proportional to 442,868,408.40, 664,302,612.60 and 258,446,571.60

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Solution

The fourth proportional to 442,868,408.40, 664,302,612.60 and 258,446,571.60 is: 387,669,857.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,868,408.40 : 664,302,612.60 = 258,446,571.60 : x
  2. Step 2: Convert to fraction form
    442,868,408.40/664,302,612.60 = 258,446,571.60/x
  3. Step 3: Cross multiply
    442,868,408.40x = 664,302,612.60 × 258,446,571.60
  4. Step 4: Simplify right side
    442,868,408.40x = 171,686,732,731,392,960
  5. Step 5: Solve for x
    x = 171,686,732,731,392,960/442,868,408.40
  6. Step 6: Final answer
    x = 387,669,857.40

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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.