Home / 612,115,391.04-916,827,232.48-505,866,571.60

Finding the Fourth Proportional to 612,115,391.04, 916,827,232.48 and 505,866,571.60

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Solution

The fourth proportional to 612,115,391.04, 916,827,232.48 and 505,866,571.60 is: 757,687,611.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,115,391.04 : 916,827,232.48 = 505,866,571.60 : x
  2. Step 2: Convert to fraction form
    612,115,391.04/916,827,232.48 = 505,866,571.60/x
  3. Step 3: Cross multiply
    612,115,391.04x = 916,827,232.48 × 505,866,571.60
  4. Step 4: Simplify right side
    612,115,391.04x = 463,792,248,844,173,824
  5. Step 5: Solve for x
    x = 463,792,248,844,173,824/612,115,391.04
  6. Step 6: Final answer
    x = 757,687,611.90

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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.