Home / 217,606,916.64-326,544,197.01-86,426,241.64

Finding the Fourth Proportional to 217,606,916.64, 326,544,197.01 and 86,426,241.64

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Solution

The fourth proportional to 217,606,916.64, 326,544,197.01 and 86,426,241.64 is: 129,692,512.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,606,916.64 : 326,544,197.01 = 86,426,241.64 : x
  2. Step 2: Convert to fraction form
    217,606,916.64/326,544,197.01 = 86,426,241.64/x
  3. Step 3: Cross multiply
    217,606,916.64x = 326,544,197.01 × 86,426,241.64
  4. Step 4: Simplify right side
    217,606,916.64x = 28,221,987,675,785,568
  5. Step 5: Solve for x
    x = 28,221,987,675,785,568/217,606,916.64
  6. Step 6: Final answer
    x = 129,692,512.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.