Home / 686,011,428.99-1,029,015,107.03-194,725,114.44

Finding the Fourth Proportional to 686,011,428.99, 1,029,015,107.03 and 194,725,114.44

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Solution

The fourth proportional to 686,011,428.99, 1,029,015,107.03 and 194,725,114.44 is: 292,087,093.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,011,428.99 : 1,029,015,107.03 = 194,725,114.44 : x
  2. Step 2: Convert to fraction form
    686,011,428.99/1,029,015,107.03 = 194,725,114.44/x
  3. Step 3: Cross multiply
    686,011,428.99x = 1,029,015,107.03 × 194,725,114.44
  4. Step 4: Simplify right side
    686,011,428.99x = 200,375,084,475,931,968
  5. Step 5: Solve for x
    x = 200,375,084,475,931,968/686,011,428.99
  6. Step 6: Final answer
    x = 292,087,093.61

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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.