Home / 520,303,319.34-718,063,988.98-285,399,380.48

Finding the Fourth Proportional to 520,303,319.34, 718,063,988.98 and 285,399,380.48

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Solution

The fourth proportional to 520,303,319.34, 718,063,988.98 and 285,399,380.48 is: 393,876,052.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,303,319.34 : 718,063,988.98 = 285,399,380.48 : x
  2. Step 2: Convert to fraction form
    520,303,319.34/718,063,988.98 = 285,399,380.48/x
  3. Step 3: Cross multiply
    520,303,319.34x = 718,063,988.98 × 285,399,380.48
  4. Step 4: Simplify right side
    520,303,319.34x = 204,935,017,599,889,568
  5. Step 5: Solve for x
    x = 204,935,017,599,889,568/520,303,319.34
  6. Step 6: Final answer
    x = 393,876,052.65

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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.