Home / 538,153,906.90-807,230,860.35-470,129,458.90

Finding the Fourth Proportional to 538,153,906.90, 807,230,860.35 and 470,129,458.90

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Solution

The fourth proportional to 538,153,906.90, 807,230,860.35 and 470,129,458.90 is: 705,194,188.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,153,906.90 : 807,230,860.35 = 470,129,458.90 : x
  2. Step 2: Convert to fraction form
    538,153,906.90/807,230,860.35 = 470,129,458.90/x
  3. Step 3: Cross multiply
    538,153,906.90x = 807,230,860.35 × 470,129,458.90
  4. Step 4: Simplify right side
    538,153,906.90x = 379,503,007,583,726,976
  5. Step 5: Solve for x
    x = 379,503,007,583,726,976/538,153,906.90
  6. Step 6: Final answer
    x = 705,194,188.35

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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.