Home / 611,328,028.80-916,992,043.20-417,836,265.60

Finding the Fourth Proportional to 611,328,028.80, 916,992,043.20 and 417,836,265.60

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Solution

The fourth proportional to 611,328,028.80, 916,992,043.20 and 417,836,265.60 is: 626,754,398.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,328,028.80 : 916,992,043.20 = 417,836,265.60 : x
  2. Step 2: Convert to fraction form
    611,328,028.80/916,992,043.20 = 417,836,265.60/x
  3. Step 3: Cross multiply
    611,328,028.80x = 916,992,043.20 × 417,836,265.60
  4. Step 4: Simplify right side
    611,328,028.80x = 383,152,530,915,601,920
  5. Step 5: Solve for x
    x = 383,152,530,915,601,920/611,328,028.80
  6. Step 6: Final answer
    x = 626,754,398.40

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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.