Home / 402,384,558.20-603,576,837.30-378,576,001.40

Finding the Fourth Proportional to 402,384,558.20, 603,576,837.30 and 378,576,001.40

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Solution

The fourth proportional to 402,384,558.20, 603,576,837.30 and 378,576,001.40 is: 567,864,002.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,384,558.20 : 603,576,837.30 = 378,576,001.40 : x
  2. Step 2: Convert to fraction form
    402,384,558.20/603,576,837.30 = 378,576,001.40/x
  3. Step 3: Cross multiply
    402,384,558.20x = 603,576,837.30 × 378,576,001.40
  4. Step 4: Simplify right side
    402,384,558.20x = 228,499,705,602,692,352
  5. Step 5: Solve for x
    x = 228,499,705,602,692,352/402,384,558.20
  6. Step 6: Final answer
    x = 567,864,002.10

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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.