Home / 513,531,943.86-708,674,082.51-293,520,093.78

Finding the Fourth Proportional to 513,531,943.86, 708,674,082.51 and 293,520,093.78

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Solution

The fourth proportional to 513,531,943.86, 708,674,082.51 and 293,520,093.78 is: 405,057,729.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,531,943.86 : 708,674,082.51 = 293,520,093.78 : x
  2. Step 2: Convert to fraction form
    513,531,943.86/708,674,082.51 = 293,520,093.78/x
  3. Step 3: Cross multiply
    513,531,943.86x = 708,674,082.51 × 293,520,093.78
  4. Step 4: Simplify right side
    513,531,943.86x = 208,010,083,157,790,624
  5. Step 5: Solve for x
    x = 208,010,083,157,790,624/513,531,943.86
  6. Step 6: Final answer
    x = 405,057,729.41

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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.