Home / 356,724,431.20-535,086,646.80-253,412,300.80

Finding the Fourth Proportional to 356,724,431.20, 535,086,646.80 and 253,412,300.80

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Solution

The fourth proportional to 356,724,431.20, 535,086,646.80 and 253,412,300.80 is: 380,118,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,724,431.20 : 535,086,646.80 = 253,412,300.80 : x
  2. Step 2: Convert to fraction form
    356,724,431.20/535,086,646.80 = 253,412,300.80/x
  3. Step 3: Cross multiply
    356,724,431.20x = 535,086,646.80 × 253,412,300.80
  4. Step 4: Simplify right side
    356,724,431.20x = 135,597,538,292,944,960
  5. Step 5: Solve for x
    x = 135,597,538,292,944,960/356,724,431.20
  6. Step 6: Final answer
    x = 380,118,451.20

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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.