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Finding the Fourth Proportional to 254,406,400.80, 356,975,176.80 and 254,406,400.80

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Solution

The fourth proportional to 254,406,400.80, 356,975,176.80 and 254,406,400.80 is: 356,975,176.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,406,400.80 : 356,975,176.80 = 254,406,400.80 : x
  2. Step 2: Convert to fraction form
    254,406,400.80/356,975,176.80 = 254,406,400.80/x
  3. Step 3: Cross multiply
    254,406,400.80x = 356,975,176.80 × 254,406,400.80
  4. Step 4: Simplify right side
    254,406,400.80x = 90,816,769,904,631,664
  5. Step 5: Solve for x
    x = 90,816,769,904,631,664/254,406,400.80
  6. Step 6: Final answer
    x = 356,975,176.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.