Home / 664,848,045.45-997,272,068.18-319,623,971.85

Finding the Fourth Proportional to 664,848,045.45, 997,272,068.18 and 319,623,971.85

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Solution

The fourth proportional to 664,848,045.45, 997,272,068.18 and 319,623,971.85 is: 479,435,957.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,848,045.45 : 997,272,068.18 = 319,623,971.85 : x
  2. Step 2: Convert to fraction form
    664,848,045.45/997,272,068.18 = 319,623,971.85/x
  3. Step 3: Cross multiply
    664,848,045.45x = 997,272,068.18 × 319,623,971.85
  4. Step 4: Simplify right side
    664,848,045.45x = 318,752,059,445,157,504
  5. Step 5: Solve for x
    x = 318,752,059,445,157,504/664,848,045.45
  6. Step 6: Final answer
    x = 479,435,957.78

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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.