Home / 213,584,027.20-320,376,040.80-122,884,763.20

Finding the Fourth Proportional to 213,584,027.20, 320,376,040.80 and 122,884,763.20

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Solution

The fourth proportional to 213,584,027.20, 320,376,040.80 and 122,884,763.20 is: 184,327,144.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,584,027.20 : 320,376,040.80 = 122,884,763.20 : x
  2. Step 2: Convert to fraction form
    213,584,027.20/320,376,040.80 = 122,884,763.20/x
  3. Step 3: Cross multiply
    213,584,027.20x = 320,376,040.80 × 122,884,763.20
  4. Step 4: Simplify right side
    213,584,027.20x = 39,369,333,908,661,544
  5. Step 5: Solve for x
    x = 39,369,333,908,661,544/213,584,027.20
  6. Step 6: Final answer
    x = 184,327,144.80

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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.