Home / 289,991,338.98-400,188,025.53-157,833,283.14

Finding the Fourth Proportional to 289,991,338.98, 400,188,025.53 and 157,833,283.14

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Solution

The fourth proportional to 289,991,338.98, 400,188,025.53 and 157,833,283.14 is: 217,809,918.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,991,338.98 : 400,188,025.53 = 157,833,283.14 : x
  2. Step 2: Convert to fraction form
    289,991,338.98/400,188,025.53 = 157,833,283.14/x
  3. Step 3: Cross multiply
    289,991,338.98x = 400,188,025.53 × 157,833,283.14
  4. Step 4: Simplify right side
    289,991,338.98x = 63,162,989,942,714,032
  5. Step 5: Solve for x
    x = 63,162,989,942,714,032/289,991,338.98
  6. Step 6: Final answer
    x = 217,809,918.62

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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.