Home / 517,877,885.72-777,307,941.41-320,544,383.11

Finding the Fourth Proportional to 517,877,885.72, 777,307,941.41 and 320,544,383.11

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Solution

The fourth proportional to 517,877,885.72, 777,307,941.41 and 320,544,383.11 is: 481,120,552.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,877,885.72 : 777,307,941.41 = 320,544,383.11 : x
  2. Step 2: Convert to fraction form
    517,877,885.72/777,307,941.41 = 320,544,383.11/x
  3. Step 3: Cross multiply
    517,877,885.72x = 777,307,941.41 × 320,544,383.11
  4. Step 4: Simplify right side
    517,877,885.72x = 249,161,694,562,226,496
  5. Step 5: Solve for x
    x = 249,161,694,562,226,496/517,877,885.72
  6. Step 6: Final answer
    x = 481,120,552.61

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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.