Home / 499,195,007.83-688,884,003.09-276,178,285.54

Finding the Fourth Proportional to 499,195,007.83, 688,884,003.09 and 276,178,285.54

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Solution

The fourth proportional to 499,195,007.83, 688,884,003.09 and 276,178,285.54 is: 381,123,208.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,195,007.83 : 688,884,003.09 = 276,178,285.54 : x
  2. Step 2: Convert to fraction form
    499,195,007.83/688,884,003.09 = 276,178,285.54/x
  3. Step 3: Cross multiply
    499,195,007.83x = 688,884,003.09 × 276,178,285.54
  4. Step 4: Simplify right side
    499,195,007.83x = 190,254,802,909,328,288
  5. Step 5: Solve for x
    x = 190,254,802,909,328,288/499,195,007.83
  6. Step 6: Final answer
    x = 381,123,208.22

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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.