Home / 213,623,996.80-320,435,995.20-141,820,412.80

Finding the Fourth Proportional to 213,623,996.80, 320,435,995.20 and 141,820,412.80

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Solution

The fourth proportional to 213,623,996.80, 320,435,995.20 and 141,820,412.80 is: 212,730,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,623,996.80 : 320,435,995.20 = 141,820,412.80 : x
  2. Step 2: Convert to fraction form
    213,623,996.80/320,435,995.20 = 141,820,412.80/x
  3. Step 3: Cross multiply
    213,623,996.80x = 320,435,995.20 × 141,820,412.80
  4. Step 4: Simplify right side
    213,623,996.80x = 45,444,365,115,242,824
  5. Step 5: Solve for x
    x = 45,444,365,115,242,824/213,623,996.80
  6. Step 6: Final answer
    x = 212,730,619.20

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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.