Home / 72,407,800.80-108,611,701.20-43,308,453.60

Finding the Fourth Proportional to 72,407,800.80, 108,611,701.20 and 43,308,453.60

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Solution

The fourth proportional to 72,407,800.80, 108,611,701.20 and 43,308,453.60 is: 64,962,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,407,800.80 : 108,611,701.20 = 43,308,453.60 : x
  2. Step 2: Convert to fraction form
    72,407,800.80/108,611,701.20 = 43,308,453.60/x
  3. Step 3: Cross multiply
    72,407,800.80x = 108,611,701.20 × 43,308,453.60
  4. Step 4: Simplify right side
    72,407,800.80x = 4,703,804,821,837,265
  5. Step 5: Solve for x
    x = 4,703,804,821,837,265/72,407,800.80
  6. Step 6: Final answer
    x = 64,962,680.40

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Similar ratio
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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.