Home / 505,521,008.40-758,281,512.60-142,015,364.40

Finding the Fourth Proportional to 505,521,008.40, 758,281,512.60 and 142,015,364.40

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Solution

The fourth proportional to 505,521,008.40, 758,281,512.60 and 142,015,364.40 is: 213,023,046.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,521,008.40 : 758,281,512.60 = 142,015,364.40 : x
  2. Step 2: Convert to fraction form
    505,521,008.40/758,281,512.60 = 142,015,364.40/x
  3. Step 3: Cross multiply
    505,521,008.40x = 758,281,512.60 × 142,015,364.40
  4. Step 4: Simplify right side
    505,521,008.40x = 107,687,625,329,672,192
  5. Step 5: Solve for x
    x = 107,687,625,329,672,192/505,521,008.40
  6. Step 6: Final answer
    x = 213,023,046.60

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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.