Home / 840,604,625.42-1,160,036,632.60-469,339,941.74

Finding the Fourth Proportional to 840,604,625.42, 1,160,036,632.60 and 469,339,941.74

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Solution

The fourth proportional to 840,604,625.42, 1,160,036,632.60 and 469,339,941.74 is: 647,690,375.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,604,625.42 : 1,160,036,632.60 = 469,339,941.74 : x
  2. Step 2: Convert to fraction form
    840,604,625.42/1,160,036,632.60 = 469,339,941.74/x
  3. Step 3: Cross multiply
    840,604,625.42x = 1,160,036,632.60 × 469,339,941.74
  4. Step 4: Simplify right side
    840,604,625.42x = 544,451,525,560,749,760
  5. Step 5: Solve for x
    x = 544,451,525,560,749,760/840,604,625.42
  6. Step 6: Final answer
    x = 647,690,375.59

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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.