Home / 287,980,669.20-397,465,055.82-162,571,090.80

Finding the Fourth Proportional to 287,980,669.20, 397,465,055.82 and 162,571,090.80

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Solution

The fourth proportional to 287,980,669.20, 397,465,055.82 and 162,571,090.80 is: 224,377,309.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,980,669.20 : 397,465,055.82 = 162,571,090.80 : x
  2. Step 2: Convert to fraction form
    287,980,669.20/397,465,055.82 = 162,571,090.80/x
  3. Step 3: Cross multiply
    287,980,669.20x = 397,465,055.82 × 162,571,090.80
  4. Step 4: Simplify right side
    287,980,669.20x = 64,616,327,679,540,296
  5. Step 5: Solve for x
    x = 64,616,327,679,540,296/287,980,669.20
  6. Step 6: Final answer
    x = 224,377,309.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.