Home / 505,196,725.76-697,164,122.56-282,181,580.80

Finding the Fourth Proportional to 505,196,725.76, 697,164,122.56 and 282,181,580.80

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Solution

The fourth proportional to 505,196,725.76, 697,164,122.56 and 282,181,580.80 is: 389,406,471.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,196,725.76 : 697,164,122.56 = 282,181,580.80 : x
  2. Step 2: Convert to fraction form
    505,196,725.76/697,164,122.56 = 282,181,580.80/x
  3. Step 3: Cross multiply
    505,196,725.76x = 697,164,122.56 × 282,181,580.80
  4. Step 4: Simplify right side
    505,196,725.76x = 196,726,874,181,025,728
  5. Step 5: Solve for x
    x = 196,726,874,181,025,728/505,196,725.76
  6. Step 6: Final answer
    x = 389,406,471.08

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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.