Home / 505,196,718.76-697,164,112.90-282,181,573.80

Finding the Fourth Proportional to 505,196,718.76, 697,164,112.90 and 282,181,573.80

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Solution

The fourth proportional to 505,196,718.76, 697,164,112.90 and 282,181,573.80 is: 389,406,461.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,196,718.76 : 697,164,112.90 = 282,181,573.80 : x
  2. Step 2: Convert to fraction form
    505,196,718.76/697,164,112.90 = 282,181,573.80/x
  3. Step 3: Cross multiply
    505,196,718.76x = 697,164,112.90 × 282,181,573.80
  4. Step 4: Simplify right side
    505,196,718.76x = 196,726,866,575,002,880
  5. Step 5: Solve for x
    x = 196,726,866,575,002,880/505,196,718.76
  6. Step 6: Final answer
    x = 389,406,461.42

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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.