Home / 637,466,458.70-879,694,770.84-355,220,795.64

Finding the Fourth Proportional to 637,466,458.70, 879,694,770.84 and 355,220,795.64

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Solution

The fourth proportional to 637,466,458.70, 879,694,770.84 and 355,220,795.64 is: 490,199,715.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,466,458.70 : 879,694,770.84 = 355,220,795.64 : x
  2. Step 2: Convert to fraction form
    637,466,458.70/879,694,770.84 = 355,220,795.64/x
  3. Step 3: Cross multiply
    637,466,458.70x = 879,694,770.84 × 355,220,795.64
  4. Step 4: Simplify right side
    637,466,458.70x = 312,485,876,418,132,288
  5. Step 5: Solve for x
    x = 312,485,876,418,132,288/637,466,458.70
  6. Step 6: Final answer
    x = 490,199,715.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.