Home / 288,151,460.92-397,649,149.12-155,992,457.44

Finding the Fourth Proportional to 288,151,460.92, 397,649,149.12 and 155,992,457.44

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Solution

The fourth proportional to 288,151,460.92, 397,649,149.12 and 155,992,457.44 is: 215,269,663.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,151,460.92 : 397,649,149.12 = 155,992,457.44 : x
  2. Step 2: Convert to fraction form
    288,151,460.92/397,649,149.12 = 155,992,457.44/x
  3. Step 3: Cross multiply
    288,151,460.92x = 397,649,149.12 × 155,992,457.44
  4. Step 4: Simplify right side
    288,151,460.92x = 62,030,267,969,373,848
  5. Step 5: Solve for x
    x = 62,030,267,969,373,848/288,151,460.92
  6. Step 6: Final answer
    x = 215,269,663.29

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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.