Home / 543,043,221.46-749,424,322.47-320,034,315.22

Finding the Fourth Proportional to 543,043,221.46, 749,424,322.47 and 320,034,315.22

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Solution

The fourth proportional to 543,043,221.46, 749,424,322.47 and 320,034,315.22 is: 441,661,897.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,043,221.46 : 749,424,322.47 = 320,034,315.22 : x
  2. Step 2: Convert to fraction form
    543,043,221.46/749,424,322.47 = 320,034,315.22/x
  3. Step 3: Cross multiply
    543,043,221.46x = 749,424,322.47 × 320,034,315.22
  4. Step 4: Simplify right side
    543,043,221.46x = 239,841,499,850,898,944
  5. Step 5: Solve for x
    x = 239,841,499,850,898,944/543,043,221.46
  6. Step 6: Final answer
    x = 441,661,897.94

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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.