Home / 579,909,002.50-800,443,057.88-378,996,100.89

Finding the Fourth Proportional to 579,909,002.50, 800,443,057.88 and 378,996,100.89

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Solution

The fourth proportional to 579,909,002.50, 800,443,057.88 and 378,996,100.89 is: 523,124,829.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,909,002.50 : 800,443,057.88 = 378,996,100.89 : x
  2. Step 2: Convert to fraction form
    579,909,002.50/800,443,057.88 = 378,996,100.89/x
  3. Step 3: Cross multiply
    579,909,002.50x = 800,443,057.88 × 378,996,100.89
  4. Step 4: Simplify right side
    579,909,002.50x = 303,364,797,920,988,608
  5. Step 5: Solve for x
    x = 303,364,797,920,988,608/579,909,002.50
  6. Step 6: Final answer
    x = 523,124,829.26

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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.