Home / 1,021,214,908.20-1,529,554,880.70-839,816,380.20

Finding the Fourth Proportional to 1,021,214,908.20, 1,529,554,880.70 and 839,816,380.20

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Solution

The fourth proportional to 1,021,214,908.20, 1,529,554,880.70 and 839,816,380.20 is: 1,257,859,861.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,214,908.20 : 1,529,554,880.70 = 839,816,380.20 : x
  2. Step 2: Convert to fraction form
    1,021,214,908.20/1,529,554,880.70 = 839,816,380.20/x
  3. Step 3: Cross multiply
    1,021,214,908.20x = 1,529,554,880.70 × 839,816,380.20
  4. Step 4: Simplify right side
    1,021,214,908.20x = 1,284,545,243,226,716,928
  5. Step 5: Solve for x
    x = 1,284,545,243,226,716,928/1,021,214,908.20
  6. Step 6: Final answer
    x = 1,257,859,861.73

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1.5x scale

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.