Home / 513,228,489.40-769,872,225.30-149,778,940.60

Finding the Fourth Proportional to 513,228,489.40, 769,872,225.30 and 149,778,940.60

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Solution

The fourth proportional to 513,228,489.40, 769,872,225.30 and 149,778,940.60 is: 224,677,017.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,228,489.40 : 769,872,225.30 = 149,778,940.60 : x
  2. Step 2: Convert to fraction form
    513,228,489.40/769,872,225.30 = 149,778,940.60/x
  3. Step 3: Cross multiply
    513,228,489.40x = 769,872,225.30 × 149,778,940.60
  4. Step 4: Simplify right side
    513,228,489.40x = 115,310,646,302,798,512
  5. Step 5: Solve for x
    x = 115,310,646,302,798,512/513,228,489.40
  6. Step 6: Final answer
    x = 224,677,017.52

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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.