Home / 820,929,938.64-1,132,898,035.68-449,628,055.20

Finding the Fourth Proportional to 820,929,938.64, 1,132,898,035.68 and 449,628,055.20

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Solution

The fourth proportional to 820,929,938.64, 1,132,898,035.68 and 449,628,055.20 is: 620,494,778.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,929,938.64 : 1,132,898,035.68 = 449,628,055.20 : x
  2. Step 2: Convert to fraction form
    820,929,938.64/1,132,898,035.68 = 449,628,055.20/x
  3. Step 3: Cross multiply
    820,929,938.64x = 1,132,898,035.68 × 449,628,055.20
  4. Step 4: Simplify right side
    820,929,938.64x = 509,382,740,522,698,624
  5. Step 5: Solve for x
    x = 509,382,740,522,698,624/820,929,938.64
  6. Step 6: Final answer
    x = 620,494,778.60

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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.