Home / 355,919,228.20-533,878,842.30-279,478,037.80

Finding the Fourth Proportional to 355,919,228.20, 533,878,842.30 and 279,478,037.80

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Solution

The fourth proportional to 355,919,228.20, 533,878,842.30 and 279,478,037.80 is: 419,217,056.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,919,228.20 : 533,878,842.30 = 279,478,037.80 : x
  2. Step 2: Convert to fraction form
    355,919,228.20/533,878,842.30 = 279,478,037.80/x
  3. Step 3: Cross multiply
    355,919,228.20x = 533,878,842.30 × 279,478,037.80
  4. Step 4: Simplify right side
    355,919,228.20x = 149,207,411,268,939,648
  5. Step 5: Solve for x
    x = 149,207,411,268,939,648/355,919,228.20
  6. Step 6: Final answer
    x = 419,217,056.70

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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.