Home / 518,194,972.58-777,292,458.87-168,440,364.45

Finding the Fourth Proportional to 518,194,972.58, 777,292,458.87 and 168,440,364.45

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Solution

The fourth proportional to 518,194,972.58, 777,292,458.87 and 168,440,364.45 is: 252,660,546.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,194,972.58 : 777,292,458.87 = 168,440,364.45 : x
  2. Step 2: Convert to fraction form
    518,194,972.58/777,292,458.87 = 168,440,364.45/x
  3. Step 3: Cross multiply
    518,194,972.58x = 777,292,458.87 × 168,440,364.45
  4. Step 4: Simplify right side
    518,194,972.58x = 130,927,425,055,457,232
  5. Step 5: Solve for x
    x = 130,927,425,055,457,232/518,194,972.58
  6. Step 6: Final answer
    x = 252,660,546.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.