Home / 513,531,959.88-708,674,104.70-293,520,109.80

Finding the Fourth Proportional to 513,531,959.88, 708,674,104.70 and 293,520,109.80

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Solution

The fourth proportional to 513,531,959.88, 708,674,104.70 and 293,520,109.80 is: 405,057,751.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,531,959.88 : 708,674,104.70 = 293,520,109.80 : x
  2. Step 2: Convert to fraction form
    513,531,959.88/708,674,104.70 = 293,520,109.80/x
  3. Step 3: Cross multiply
    513,531,959.88x = 708,674,104.70 × 293,520,109.80
  4. Step 4: Simplify right side
    513,531,959.88x = 208,010,101,023,960,704
  5. Step 5: Solve for x
    x = 208,010,101,023,960,704/513,531,959.88
  6. Step 6: Final answer
    x = 405,057,751.56

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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.