Home / 205,821,007.20-308,448,075.60-136,536,847.20

Finding the Fourth Proportional to 205,821,007.20, 308,448,075.60 and 136,536,847.20

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Solution

The fourth proportional to 205,821,007.20, 308,448,075.60 and 136,536,847.20 is: 204,617,246.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,821,007.20 : 308,448,075.60 = 136,536,847.20 : x
  2. Step 2: Convert to fraction form
    205,821,007.20/308,448,075.60 = 136,536,847.20/x
  3. Step 3: Cross multiply
    205,821,007.20x = 308,448,075.60 × 136,536,847.20
  4. Step 4: Simplify right side
    205,821,007.20x = 42,114,527,767,331,248
  5. Step 5: Solve for x
    x = 42,114,527,767,331,248/205,821,007.20
  6. Step 6: Final answer
    x = 204,617,246.51

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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.