Home / 520,775,197.20-780,619,514.76-175,610,143.44

Finding the Fourth Proportional to 520,775,197.20, 780,619,514.76 and 175,610,143.44

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Solution

The fourth proportional to 520,775,197.20, 780,619,514.76 and 175,610,143.44 is: 263,232,015.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,775,197.20 : 780,619,514.76 = 175,610,143.44 : x
  2. Step 2: Convert to fraction form
    520,775,197.20/780,619,514.76 = 175,610,143.44/x
  3. Step 3: Cross multiply
    520,775,197.20x = 780,619,514.76 × 175,610,143.44
  4. Step 4: Simplify right side
    520,775,197.20x = 137,084,704,959,066,800
  5. Step 5: Solve for x
    x = 137,084,704,959,066,800/520,775,197.20
  6. Step 6: Final answer
    x = 263,232,015.84

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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.