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Finding the Fourth Proportional to 343,359,041.80, 515,038,562.70 and 329,966,728.60

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Solution

The fourth proportional to 343,359,041.80, 515,038,562.70 and 329,966,728.60 is: 494,950,092.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,359,041.80 : 515,038,562.70 = 329,966,728.60 : x
  2. Step 2: Convert to fraction form
    343,359,041.80/515,038,562.70 = 329,966,728.60/x
  3. Step 3: Cross multiply
    343,359,041.80x = 515,038,562.70 × 329,966,728.60
  4. Step 4: Simplify right side
    343,359,041.80x = 169,945,589,636,964,992
  5. Step 5: Solve for x
    x = 169,945,589,636,964,992/343,359,041.80
  6. Step 6: Final answer
    x = 494,950,092.90

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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.