Home / 213,354,700.80-320,032,051.20-204,993,945.60

Finding the Fourth Proportional to 213,354,700.80, 320,032,051.20 and 204,993,945.60

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Solution

The fourth proportional to 213,354,700.80, 320,032,051.20 and 204,993,945.60 is: 307,490,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,354,700.80 : 320,032,051.20 = 204,993,945.60 : x
  2. Step 2: Convert to fraction form
    213,354,700.80/320,032,051.20 = 204,993,945.60/x
  3. Step 3: Cross multiply
    213,354,700.80x = 320,032,051.20 × 204,993,945.60
  4. Step 4: Simplify right side
    213,354,700.80x = 65,604,632,893,949,208
  5. Step 5: Solve for x
    x = 65,604,632,893,949,208/213,354,700.80
  6. Step 6: Final answer
    x = 307,490,918.40

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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.