Home / 630,416,403.80-944,586,996.72-215,666,499.40

Finding the Fourth Proportional to 630,416,403.80, 944,586,996.72 and 215,666,499.40

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Solution

The fourth proportional to 630,416,403.80, 944,586,996.72 and 215,666,499.40 is: 323,144,781.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,416,403.80 : 944,586,996.72 = 215,666,499.40 : x
  2. Step 2: Convert to fraction form
    630,416,403.80/944,586,996.72 = 215,666,499.40/x
  3. Step 3: Cross multiply
    630,416,403.80x = 944,586,996.72 × 215,666,499.40
  4. Step 4: Simplify right side
    630,416,403.80x = 203,715,770,961,361,696
  5. Step 5: Solve for x
    x = 203,715,770,961,361,696/630,416,403.80
  6. Step 6: Final answer
    x = 323,144,781.34

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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.