Home / 217,765,007.80-326,647,511.70-201,136,809.40

Finding the Fourth Proportional to 217,765,007.80, 326,647,511.70 and 201,136,809.40

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Solution

The fourth proportional to 217,765,007.80, 326,647,511.70 and 201,136,809.40 is: 301,705,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,765,007.80 : 326,647,511.70 = 201,136,809.40 : x
  2. Step 2: Convert to fraction form
    217,765,007.80/326,647,511.70 = 201,136,809.40/x
  3. Step 3: Cross multiply
    217,765,007.80x = 326,647,511.70 × 201,136,809.40
  4. Step 4: Simplify right side
    217,765,007.80x = 65,700,838,301,787,168
  5. Step 5: Solve for x
    x = 65,700,838,301,787,168/217,765,007.80
  6. Step 6: Final answer
    x = 301,705,214.10

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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.