Home / 538,495,450.44-743,182,769.31-312,484,221.96

Finding the Fourth Proportional to 538,495,450.44, 743,182,769.31 and 312,484,221.96

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Solution

The fourth proportional to 538,495,450.44, 743,182,769.31 and 312,484,221.96 is: 431,262,491.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,495,450.44 : 743,182,769.31 = 312,484,221.96 : x
  2. Step 2: Convert to fraction form
    538,495,450.44/743,182,769.31 = 312,484,221.96/x
  3. Step 3: Cross multiply
    538,495,450.44x = 743,182,769.31 × 312,484,221.96
  4. Step 4: Simplify right side
    538,495,450.44x = 232,232,889,441,913,472
  5. Step 5: Solve for x
    x = 232,232,889,441,913,472/538,495,450.44
  6. Step 6: Final answer
    x = 431,262,491.17

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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.