Home / 559,880,881.80-839,821,322.70-442,979,608.20

Finding the Fourth Proportional to 559,880,881.80, 839,821,322.70 and 442,979,608.20

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Solution

The fourth proportional to 559,880,881.80, 839,821,322.70 and 442,979,608.20 is: 664,469,412.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,880,881.80 : 839,821,322.70 = 442,979,608.20 : x
  2. Step 2: Convert to fraction form
    559,880,881.80/839,821,322.70 = 442,979,608.20/x
  3. Step 3: Cross multiply
    559,880,881.80x = 839,821,322.70 × 442,979,608.20
  4. Step 4: Simplify right side
    559,880,881.80x = 372,023,720,487,651,776
  5. Step 5: Solve for x
    x = 372,023,720,487,651,776/559,880,881.80
  6. Step 6: Final answer
    x = 664,469,412.30

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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.