Home / 30,339,976.60-45,509,964.90-20,136,309.40

Finding the Fourth Proportional to 30,339,976.60, 45,509,964.90 and 20,136,309.40

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Solution

The fourth proportional to 30,339,976.60, 45,509,964.90 and 20,136,309.40 is: 30,204,464.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,339,976.60 : 45,509,964.90 = 20,136,309.40 : x
  2. Step 2: Convert to fraction form
    30,339,976.60/45,509,964.90 = 20,136,309.40/x
  3. Step 3: Cross multiply
    30,339,976.60x = 45,509,964.90 × 20,136,309.40
  4. Step 4: Simplify right side
    30,339,976.60x = 916,402,734,009,540
  5. Step 5: Solve for x
    x = 916,402,734,009,540/30,339,976.60
  6. Step 6: Final answer
    x = 30,204,464.10

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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.