Home / 520,584,462.47-718,407,922.41-282,429,634.55

Finding the Fourth Proportional to 520,584,462.47, 718,407,922.41 and 282,429,634.55

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Solution

The fourth proportional to 520,584,462.47, 718,407,922.41 and 282,429,634.55 is: 389,753,635.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,584,462.47 : 718,407,922.41 = 282,429,634.55 : x
  2. Step 2: Convert to fraction form
    520,584,462.47/718,407,922.41 = 282,429,634.55/x
  3. Step 3: Cross multiply
    520,584,462.47x = 718,407,922.41 × 282,429,634.55
  4. Step 4: Simplify right side
    520,584,462.47x = 202,899,686,980,489,024
  5. Step 5: Solve for x
    x = 202,899,686,980,489,024/520,584,462.47
  6. Step 6: Final answer
    x = 389,753,635.78

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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.