Home / 603,403,204.80-905,104,807.20-215,663,851.20

Finding the Fourth Proportional to 603,403,204.80, 905,104,807.20 and 215,663,851.20

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Solution

The fourth proportional to 603,403,204.80, 905,104,807.20 and 215,663,851.20 is: 323,495,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,403,204.80 : 905,104,807.20 = 215,663,851.20 : x
  2. Step 2: Convert to fraction form
    603,403,204.80/905,104,807.20 = 215,663,851.20/x
  3. Step 3: Cross multiply
    603,403,204.80x = 905,104,807.20 × 215,663,851.20
  4. Step 4: Simplify right side
    603,403,204.80x = 195,198,388,460,385,504
  5. Step 5: Solve for x
    x = 195,198,388,460,385,504/603,403,204.80
  6. Step 6: Final answer
    x = 323,495,776.80

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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.