Home / 579,909,001.62-800,443,056.68-378,996,100.01

Finding the Fourth Proportional to 579,909,001.62, 800,443,056.68 and 378,996,100.01

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Solution

The fourth proportional to 579,909,001.62, 800,443,056.68 and 378,996,100.01 is: 523,124,828.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,909,001.62 : 800,443,056.68 = 378,996,100.01 : x
  2. Step 2: Convert to fraction form
    579,909,001.62/800,443,056.68 = 378,996,100.01/x
  3. Step 3: Cross multiply
    579,909,001.62x = 800,443,056.68 × 378,996,100.01
  4. Step 4: Simplify right side
    579,909,001.62x = 303,364,796,761,909,504
  5. Step 5: Solve for x
    x = 303,364,796,761,909,504/579,909,001.62
  6. Step 6: Final answer
    x = 523,124,828.06

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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.