Home / 686,045,544.51-946,740,790.26-372,780,714.27

Finding the Fourth Proportional to 686,045,544.51, 946,740,790.26 and 372,780,714.27

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Solution

The fourth proportional to 686,045,544.51, 946,740,790.26 and 372,780,714.27 is: 514,436,265.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,045,544.51 : 946,740,790.26 = 372,780,714.27 : x
  2. Step 2: Convert to fraction form
    686,045,544.51/946,740,790.26 = 372,780,714.27/x
  3. Step 3: Cross multiply
    686,045,544.51x = 946,740,790.26 × 372,780,714.27
  4. Step 4: Simplify right side
    686,045,544.51x = 352,926,708,021,667,008
  5. Step 5: Solve for x
    x = 352,926,708,021,667,008/686,045,544.51
  6. Step 6: Final answer
    x = 514,436,265.71

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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.