Home / 686,656,994.40-1,029,985,491.60-611,410,197.60

Finding the Fourth Proportional to 686,656,994.40, 1,029,985,491.60 and 611,410,197.60

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Solution

The fourth proportional to 686,656,994.40, 1,029,985,491.60 and 611,410,197.60 is: 917,115,296.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,656,994.40 : 1,029,985,491.60 = 611,410,197.60 : x
  2. Step 2: Convert to fraction form
    686,656,994.40/1,029,985,491.60 = 611,410,197.60/x
  3. Step 3: Cross multiply
    686,656,994.40x = 1,029,985,491.60 × 611,410,197.60
  4. Step 4: Simplify right side
    686,656,994.40x = 629,743,632,944,289,152
  5. Step 5: Solve for x
    x = 629,743,632,944,289,152/686,656,994.40
  6. Step 6: Final answer
    x = 917,115,296.40

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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.