Home / 355,919,216.70-533,878,825.05-279,478,026.30

Finding the Fourth Proportional to 355,919,216.70, 533,878,825.05 and 279,478,026.30

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Solution

The fourth proportional to 355,919,216.70, 533,878,825.05 and 279,478,026.30 is: 419,217,039.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,919,216.70 : 533,878,825.05 = 279,478,026.30 : x
  2. Step 2: Convert to fraction form
    355,919,216.70/533,878,825.05 = 279,478,026.30/x
  3. Step 3: Cross multiply
    355,919,216.70x = 533,878,825.05 × 279,478,026.30
  4. Step 4: Simplify right side
    355,919,216.70x = 149,207,400,308,337,024
  5. Step 5: Solve for x
    x = 149,207,400,308,337,024/355,919,216.70
  6. Step 6: Final answer
    x = 419,217,039.45

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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.