Home / 820,054,829.94-1,230,136,790.16-288,201,929.28

Finding the Fourth Proportional to 820,054,829.94, 1,230,136,790.16 and 288,201,929.28

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Solution

The fourth proportional to 820,054,829.94, 1,230,136,790.16 and 288,201,929.28 is: 432,322,063.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,054,829.94 : 1,230,136,790.16 = 288,201,929.28 : x
  2. Step 2: Convert to fraction form
    820,054,829.94/1,230,136,790.16 = 288,201,929.28/x
  3. Step 3: Cross multiply
    820,054,829.94x = 1,230,136,790.16 × 288,201,929.28
  4. Step 4: Simplify right side
    820,054,829.94x = 354,527,796,202,418,496
  5. Step 5: Solve for x
    x = 354,527,796,202,418,496/820,054,829.94
  6. Step 6: Final answer
    x = 432,322,063.43

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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.