Home / 782,443,932.40-1,173,665,898.60-419,646,876.40

Finding the Fourth Proportional to 782,443,932.40, 1,173,665,898.60 and 419,646,876.40

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Solution

The fourth proportional to 782,443,932.40, 1,173,665,898.60 and 419,646,876.40 is: 629,470,314.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,443,932.40 : 1,173,665,898.60 = 419,646,876.40 : x
  2. Step 2: Convert to fraction form
    782,443,932.40/1,173,665,898.60 = 419,646,876.40/x
  3. Step 3: Cross multiply
    782,443,932.40x = 1,173,665,898.60 × 419,646,876.40
  4. Step 4: Simplify right side
    782,443,932.40x = 492,525,228,284,689,088
  5. Step 5: Solve for x
    x = 492,525,228,284,689,088/782,443,932.40
  6. Step 6: Final answer
    x = 629,470,314.60

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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.