Home / 664,292,379.60-996,438,569.40-319,162,784.40

Finding the Fourth Proportional to 664,292,379.60, 996,438,569.40 and 319,162,784.40

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Solution

The fourth proportional to 664,292,379.60, 996,438,569.40 and 319,162,784.40 is: 478,744,176.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,292,379.60 : 996,438,569.40 = 319,162,784.40 : x
  2. Step 2: Convert to fraction form
    664,292,379.60/996,438,569.40 = 319,162,784.40/x
  3. Step 3: Cross multiply
    664,292,379.60x = 996,438,569.40 × 319,162,784.40
  4. Step 4: Simplify right side
    664,292,379.60x = 318,026,108,293,256,576
  5. Step 5: Solve for x
    x = 318,026,108,293,256,576/664,292,379.60
  6. Step 6: Final answer
    x = 478,744,176.60

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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.