Home / 354,294,379.90-531,441,569.85-319,857,003.10

Finding the Fourth Proportional to 354,294,379.90, 531,441,569.85 and 319,857,003.10

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Solution

The fourth proportional to 354,294,379.90, 531,441,569.85 and 319,857,003.10 is: 479,785,504.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,379.90 : 531,441,569.85 = 319,857,003.10 : x
  2. Step 2: Convert to fraction form
    354,294,379.90/531,441,569.85 = 319,857,003.10/x
  3. Step 3: Cross multiply
    354,294,379.90x = 531,441,569.85 × 319,857,003.10
  4. Step 4: Simplify right side
    354,294,379.90x = 169,985,307,854,980,352
  5. Step 5: Solve for x
    x = 169,985,307,854,980,352/354,294,379.90
  6. Step 6: Final answer
    x = 479,785,504.65

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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.