Home / 288,307,194.72-397,870,352.88-164,545,388.64

Finding the Fourth Proportional to 288,307,194.72, 397,870,352.88 and 164,545,388.64

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Solution

The fourth proportional to 288,307,194.72, 397,870,352.88 and 164,545,388.64 is: 227,076,302.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,307,194.72 : 397,870,352.88 = 164,545,388.64 : x
  2. Step 2: Convert to fraction form
    288,307,194.72/397,870,352.88 = 164,545,388.64/x
  3. Step 3: Cross multiply
    288,307,194.72x = 397,870,352.88 × 164,545,388.64
  4. Step 4: Simplify right side
    288,307,194.72x = 65,467,731,842,973,536
  5. Step 5: Solve for x
    x = 65,467,731,842,973,536/288,307,194.72
  6. Step 6: Final answer
    x = 227,076,302.78

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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.