Home / 431,690,673.80-647,536,010.70-293,941,166.60

Finding the Fourth Proportional to 431,690,673.80, 647,536,010.70 and 293,941,166.60

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Solution

The fourth proportional to 431,690,673.80, 647,536,010.70 and 293,941,166.60 is: 440,911,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,690,673.80 : 647,536,010.70 = 293,941,166.60 : x
  2. Step 2: Convert to fraction form
    431,690,673.80/647,536,010.70 = 293,941,166.60/x
  3. Step 3: Cross multiply
    431,690,673.80x = 647,536,010.70 × 293,941,166.60
  4. Step 4: Simplify right side
    431,690,673.80x = 190,337,490,400,668,128
  5. Step 5: Solve for x
    x = 190,337,490,400,668,128/431,690,673.80
  6. Step 6: Final answer
    x = 440,911,749.90

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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.