Home / 330,703,140.80-496,054,711.20-258,960,881.60

Finding the Fourth Proportional to 330,703,140.80, 496,054,711.20 and 258,960,881.60

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Solution

The fourth proportional to 330,703,140.80, 496,054,711.20 and 258,960,881.60 is: 388,441,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,703,140.80 : 496,054,711.20 = 258,960,881.60 : x
  2. Step 2: Convert to fraction form
    330,703,140.80/496,054,711.20 = 258,960,881.60/x
  3. Step 3: Cross multiply
    330,703,140.80x = 496,054,711.20 × 258,960,881.60
  4. Step 4: Simplify right side
    330,703,140.80x = 128,458,765,334,185,392
  5. Step 5: Solve for x
    x = 128,458,765,334,185,392/330,703,140.80
  6. Step 6: Final answer
    x = 388,441,322.40

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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.