Home / 28,127,274.20-42,190,911.30-8,959,968.80

Finding the Fourth Proportional to 28,127,274.20, 42,190,911.30 and 8,959,968.80

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Solution

The fourth proportional to 28,127,274.20, 42,190,911.30 and 8,959,968.80 is: 13,439,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127,274.20 : 42,190,911.30 = 8,959,968.80 : x
  2. Step 2: Convert to fraction form
    28,127,274.20/42,190,911.30 = 8,959,968.80/x
  3. Step 3: Cross multiply
    28,127,274.20x = 42,190,911.30 × 8,959,968.80
  4. Step 4: Simplify right side
    28,127,274.20x = 378,029,248,891,567.44
  5. Step 5: Solve for x
    x = 378,029,248,891,567.44/28,127,274.20
  6. Step 6: Final answer
    x = 13,439,953.20

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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.