Home / 442,868,346.40-664,302,519.60-258,446,509.60

Finding the Fourth Proportional to 442,868,346.40, 664,302,519.60 and 258,446,509.60

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Solution

The fourth proportional to 442,868,346.40, 664,302,519.60 and 258,446,509.60 is: 387,669,764.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,868,346.40 : 664,302,519.60 = 258,446,509.60 : x
  2. Step 2: Convert to fraction form
    442,868,346.40/664,302,519.60 = 258,446,509.60/x
  3. Step 3: Cross multiply
    442,868,346.40x = 664,302,519.60 × 258,446,509.60
  4. Step 4: Simplify right side
    442,868,346.40x = 171,686,667,509,105,600
  5. Step 5: Solve for x
    x = 171,686,667,509,105,600/442,868,346.40
  6. Step 6: Final answer
    x = 387,669,764.40

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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.