Home / 193,538,999.80-290,308,499.70-145,763,255.80

Finding the Fourth Proportional to 193,538,999.80, 290,308,499.70 and 145,763,255.80

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Solution

The fourth proportional to 193,538,999.80, 290,308,499.70 and 145,763,255.80 is: 218,644,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,538,999.80 : 290,308,499.70 = 145,763,255.80 : x
  2. Step 2: Convert to fraction form
    193,538,999.80/290,308,499.70 = 145,763,255.80/x
  3. Step 3: Cross multiply
    193,538,999.80x = 290,308,499.70 × 145,763,255.80
  4. Step 4: Simplify right side
    193,538,999.80x = 42,316,312,102,685,328
  5. Step 5: Solve for x
    x = 42,316,312,102,685,328/193,538,999.80
  6. Step 6: Final answer
    x = 218,644,883.70

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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.