Home / 43,691,020.80-65,611,180.80-28,611,801.60

Finding the Fourth Proportional to 43,691,020.80, 65,611,180.80 and 28,611,801.60

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Solution

The fourth proportional to 43,691,020.80, 65,611,180.80 and 28,611,801.60 is: 42,966,587.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,691,020.80 : 65,611,180.80 = 28,611,801.60 : x
  2. Step 2: Convert to fraction form
    43,691,020.80/65,611,180.80 = 28,611,801.60/x
  3. Step 3: Cross multiply
    43,691,020.80x = 65,611,180.80 × 28,611,801.60
  4. Step 4: Simplify right side
    43,691,020.80x = 1,877,254,087,791,329.25
  5. Step 5: Solve for x
    x = 1,877,254,087,791,329.25/43,691,020.80
  6. Step 6: Final answer
    x = 42,966,587.95

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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.