Home / 543,043,306.96-749,424,441-320,034,400.72

Finding the Fourth Proportional to 543,043,306.96, 749,424,441 and 320,034,400.72

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Solution

The fourth proportional to 543,043,306.96, 749,424,441 and 320,034,400.72 is: 441,662,016.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,043,306.96 : 749,424,441 = 320,034,400.72 : x
  2. Step 2: Convert to fraction form
    543,043,306.96/749,424,441 = 320,034,400.72/x
  3. Step 3: Cross multiply
    543,043,306.96x = 749,424,441 × 320,034,400.72
  4. Step 4: Simplify right side
    543,043,306.96x = 239,841,601,860,356,032
  5. Step 5: Solve for x
    x = 239,841,601,860,356,032/543,043,306.96
  6. Step 6: Final answer
    x = 441,662,016.25

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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.