Home / 288,015,664.55-397,462,664.07-155,856,647.34

Finding the Fourth Proportional to 288,015,664.55, 397,462,664.07 and 155,856,647.34

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Solution

The fourth proportional to 288,015,664.55, 397,462,664.07 and 155,856,647.34 is: 215,082,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,015,664.55 : 397,462,664.07 = 155,856,647.34 : x
  2. Step 2: Convert to fraction form
    288,015,664.55/397,462,664.07 = 155,856,647.34/x
  3. Step 3: Cross multiply
    288,015,664.55x = 397,462,664.07 × 155,856,647.34
  4. Step 4: Simplify right side
    288,015,664.55x = 61,947,198,264,774,880
  5. Step 5: Solve for x
    x = 61,947,198,264,774,880/288,015,664.55
  6. Step 6: Final answer
    x = 215,082,739.90

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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.