Home / 1,021,214,963.20-1,529,554,963.20-839,816,435.20

Finding the Fourth Proportional to 1,021,214,963.20, 1,529,554,963.20 and 839,816,435.20

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Solution

The fourth proportional to 1,021,214,963.20, 1,529,554,963.20 and 839,816,435.20 is: 1,257,859,944.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,214,963.20 : 1,529,554,963.20 = 839,816,435.20 : x
  2. Step 2: Convert to fraction form
    1,021,214,963.20/1,529,554,963.20 = 839,816,435.20/x
  3. Step 3: Cross multiply
    1,021,214,963.20x = 1,529,554,963.20 × 839,816,435.20
  4. Step 4: Simplify right side
    1,021,214,963.20x = 1,284,545,396,637,091,328
  5. Step 5: Solve for x
    x = 1,284,545,396,637,091,328/1,021,214,963.20
  6. Step 6: Final answer
    x = 1,257,859,944.21

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Double scale
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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.