Home / 43,720,999.20-65,581,498.80-13,428,813.60

Finding the Fourth Proportional to 43,720,999.20, 65,581,498.80 and 13,428,813.60

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Solution

The fourth proportional to 43,720,999.20, 65,581,498.80 and 13,428,813.60 is: 20,143,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,720,999.20 : 65,581,498.80 = 13,428,813.60 : x
  2. Step 2: Convert to fraction form
    43,720,999.20/65,581,498.80 = 13,428,813.60/x
  3. Step 3: Cross multiply
    43,720,999.20x = 65,581,498.80 × 13,428,813.60
  4. Step 4: Simplify right side
    43,720,999.20x = 880,681,722,993,823.62
  5. Step 5: Solve for x
    x = 880,681,722,993,823.62/43,720,999.20
  6. Step 6: Final answer
    x = 20,143,220.40

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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.