Home / 28,621,156.12-42,914,395.86-12,843,772.60

Finding the Fourth Proportional to 28,621,156.12, 42,914,395.86 and 12,843,772.60

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Solution

The fourth proportional to 28,621,156.12, 42,914,395.86 and 12,843,772.60 is: 19,257,878.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,621,156.12 : 42,914,395.86 = 12,843,772.60 : x
  2. Step 2: Convert to fraction form
    28,621,156.12/42,914,395.86 = 12,843,772.60/x
  3. Step 3: Cross multiply
    28,621,156.12x = 42,914,395.86 × 12,843,772.60
  4. Step 4: Simplify right side
    28,621,156.12x = 551,182,741,692,221.44
  5. Step 5: Solve for x
    x = 551,182,741,692,221.44/28,621,156.12
  6. Step 6: Final answer
    x = 19,257,878.31

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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.