Home / 4,200,136.80-6,303,315.60-2,779,720.80

Finding the Fourth Proportional to 4,200,136.80, 6,303,315.60 and 2,779,720.80

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Solution

The fourth proportional to 4,200,136.80, 6,303,315.60 and 2,779,720.80 is: 4,171,639.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200,136.80 : 6,303,315.60 = 2,779,720.80 : x
  2. Step 2: Convert to fraction form
    4,200,136.80/6,303,315.60 = 2,779,720.80/x
  3. Step 3: Cross multiply
    4,200,136.80x = 6,303,315.60 × 2,779,720.80
  4. Step 4: Simplify right side
    4,200,136.80x = 17,521,457,482,284.48
  5. Step 5: Solve for x
    x = 17,521,457,482,284.48/4,200,136.80
  6. Step 6: Final answer
    x = 4,171,639.71

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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.