Home / 512,464,318.80-768,621,828.60-148,920,766.80

Finding the Fourth Proportional to 512,464,318.80, 768,621,828.60 and 148,920,766.80

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Solution

The fourth proportional to 512,464,318.80, 768,621,828.60 and 148,920,766.80 is: 223,359,457.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,464,318.80 : 768,621,828.60 = 148,920,766.80 : x
  2. Step 2: Convert to fraction form
    512,464,318.80/768,621,828.60 = 148,920,766.80/x
  3. Step 3: Cross multiply
    512,464,318.80x = 768,621,828.60 × 148,920,766.80
  4. Step 4: Simplify right side
    512,464,318.80x = 114,463,752,094,330,176
  5. Step 5: Solve for x
    x = 114,463,752,094,330,176/512,464,318.80
  6. Step 6: Final answer
    x = 223,359,457.22

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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.