Home / 933,124,813.90-1,399,687,220.85-319,505,101.90

Finding the Fourth Proportional to 933,124,813.90, 1,399,687,220.85 and 319,505,101.90

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Solution

The fourth proportional to 933,124,813.90, 1,399,687,220.85 and 319,505,101.90 is: 479,257,652.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    933,124,813.90 : 1,399,687,220.85 = 319,505,101.90 : x
  2. Step 2: Convert to fraction form
    933,124,813.90/1,399,687,220.85 = 319,505,101.90/x
  3. Step 3: Cross multiply
    933,124,813.90x = 1,399,687,220.85 × 319,505,101.90
  4. Step 4: Simplify right side
    933,124,813.90x = 447,207,208,125,806,976
  5. Step 5: Solve for x
    x = 447,207,208,125,806,976/933,124,813.90
  6. Step 6: Final answer
    x = 479,257,652.85

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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.