Home / 30,339,936.60-45,509,904.90-20,136,269.40

Finding the Fourth Proportional to 30,339,936.60, 45,509,904.90 and 20,136,269.40

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Solution

The fourth proportional to 30,339,936.60, 45,509,904.90 and 20,136,269.40 is: 30,204,404.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,339,936.60 : 45,509,904.90 = 20,136,269.40 : x
  2. Step 2: Convert to fraction form
    30,339,936.60/45,509,904.90 = 20,136,269.40/x
  3. Step 3: Cross multiply
    30,339,936.60x = 45,509,904.90 × 20,136,269.40
  4. Step 4: Simplify right side
    30,339,936.60x = 916,399,705,434,780
  5. Step 5: Solve for x
    x = 916,399,705,434,780/30,339,936.60
  6. Step 6: Final answer
    x = 30,204,404.10

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1.5x scale

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.