Home / 695,404,815.60-1,043,107,223.40-419,905,801.20

Finding the Fourth Proportional to 695,404,815.60, 1,043,107,223.40 and 419,905,801.20

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Solution

The fourth proportional to 695,404,815.60, 1,043,107,223.40 and 419,905,801.20 is: 629,858,701.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,404,815.60 : 1,043,107,223.40 = 419,905,801.20 : x
  2. Step 2: Convert to fraction form
    695,404,815.60/1,043,107,223.40 = 419,905,801.20/x
  3. Step 3: Cross multiply
    695,404,815.60x = 1,043,107,223.40 × 419,905,801.20
  4. Step 4: Simplify right side
    695,404,815.60x = 438,006,774,379,284,352
  5. Step 5: Solve for x
    x = 438,006,774,379,284,352/695,404,815.60
  6. Step 6: Final answer
    x = 629,858,701.80

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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.