Home / 287,725,072.44-397,096,965.90-188,689,139.40

Finding the Fourth Proportional to 287,725,072.44, 397,096,965.90 and 188,689,139.40

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Solution

The fourth proportional to 287,725,072.44, 397,096,965.90 and 188,689,139.40 is: 260,414,861.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,725,072.44 : 397,096,965.90 = 188,689,139.40 : x
  2. Step 2: Convert to fraction form
    287,725,072.44/397,096,965.90 = 188,689,139.40/x
  3. Step 3: Cross multiply
    287,725,072.44x = 397,096,965.90 × 188,689,139.40
  4. Step 4: Simplify right side
    287,725,072.44x = 74,927,884,754,022,144
  5. Step 5: Solve for x
    x = 74,927,884,754,022,144/287,725,072.44
  6. Step 6: Final answer
    x = 260,414,861.03

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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.