Home / 28,091,851.20-42,137,776.80-14,486,961.60

Finding the Fourth Proportional to 28,091,851.20, 42,137,776.80 and 14,486,961.60

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Solution

The fourth proportional to 28,091,851.20, 42,137,776.80 and 14,486,961.60 is: 21,730,442.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,091,851.20 : 42,137,776.80 = 14,486,961.60 : x
  2. Step 2: Convert to fraction form
    28,091,851.20/42,137,776.80 = 14,486,961.60/x
  3. Step 3: Cross multiply
    28,091,851.20x = 42,137,776.80 × 14,486,961.60
  4. Step 4: Simplify right side
    28,091,851.20x = 610,448,354,410,970.88
  5. Step 5: Solve for x
    x = 610,448,354,410,970.88/28,091,851.20
  6. Step 6: Final answer
    x = 21,730,442.40

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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.